Engineers-Led Design Machining | Factory-Direct, No Middlemen

Custom Online CNC Machining Solutions on Demand Service

Start A New Free Project Quote

20 years OEM/ODM for 150+ Brands

48+ surface finishes for custom aesthetics

Save 30% on your project budget

Your Complete Custom Part Manufacturing Services

Your reliable partner for comprehensive manufacturing: With 20 years’ experience, 100k+ successful projects, and ±0.002mm precision, LK Tools efficiently brings your concepts to reality, from design to final assembly.

5 Axis CNC Machining

±0.005mm precision for your most complex designs.

4 Axis CNC Machining

±0.02mm 4-Axis CNC Machining precision for your parts

3 Axis CNC Machining

Best value 3-Axis CNC Machining for your reliable, standard parts

CNC Turning Service

Master 100+ materials. Parts up to Ø300mm x L500mm+ capacity

What is 5 Axis CNC Machining at LK Tools?

CNC machining provides high-precision custom parts, ensuring quality and consistency for your projects at LK Tools

What is CNC Machining?

CNC machining is a subtractive manufacturing process where a computer program dictates the movement of cutting tools to remove material from a workpiece, transforming your ideas into physical, finished parts

How it works？

We turn your 3D CAD designs into reality through CNC machining. CAM software generates precise G-code instructions, guiding our CNC machines to expertly cut your parts to perfection

Types of CNC Machines

From mills and lathes to routers and grinders, CNC machining offers unmatched versatility, letting us craft your parts with precision and speed, whatever the material or complexity

Materials

With the ability to shape over 150 different materials – from metals and plastics to woods and composites – CNC machining gives you unparalleled freedom in material selection, ensuring the perfect part for your application

Applications

CNC machining parts for all industries (aerospace, medical,automotive, etc.). Rapid, accurate (+/-0.01mm) production helps you save 30% on waste with 48-hour delivery and ISO quality, even for complex designs.

Over 150 Premium Materials for Custom Machining Solutions

Your guide to machining,covering tolerances, materials,
finishes, and applications materials, finishes, and applications

CNC Machining Services

Custom 3-Axis CNC Milling Services

Fast & Precise – CNC-milled prototypes and production parts in 2-5 days.
Material Options – Over 30+ plastics & metals, including Aluminum 6061/7075, Stainless Steel 304/316, Titanium, PEEK, Delrin, Nylon.
Scalable Production – From 1 to 100,000+ parts with competitive pricing
Certifications – AS9100D, ISO 9001:2015, ISO 13485, IATF 16949:2016, ITAR Registered.
Quality & Finishing – FAI reports, material certifications, plus anodizing & chromate plating.
High-precision machining for aerospace, automotive, medical, and industrial applications.

4-Axis CNC Milling

Custom 4-Axis CNC Milling Services

One-Setup Machining – Reduces errors, improves accuracy (±0.0005” / ±0.0127mm), and cuts costs.
Faster Production – 30-50% shorter machining time, with parts delivered in 3-7 days.
Handles Complex Geometries – Ideal for curved surfaces, angled cuts, and multi-sided parts.
Scalable for Any Volume – From 1 to 100,000+ parts with competitive pricing.
Works with 30+ Materials – Aluminum, Stainless Steel, Titanium, PEEK, Delrin, Nylon
Certified Quality & Finishing – AS9100D, ISO 9001, IATF 16949, plus FAI reports, anodizing, and plating.
Get a quote today for high-precision 4-axis CNC machining!

5-Axis CNC Milling

Custom 5-Axis CNC Milling Services

Unlimited Design Freedom – Machine complex curves
Faster, More Efficient Machining – Reduce production time by up to 60% with simultaneous 5-axis movement.
Superior Accuracy & Consistency – Achieve ±0.0002” (±0.005mm) precision, perfect for tight-tolerance aerospace, medical, and high-tech applications.
Flawless Surface Finish – Continuous tool contact minimizes tool marks, reducing post-processing time and costs.
Cost-Effective for Prototypes & Production – From 1 to 100,000+ parts, optimized pricing for any order size.
Handles High-Performance Materials – Easily machines Aluminum, Stainless Steel, Titanium, Inconel, PEEK, Delrin, Nylon, and more.
Push the limits of CNC machining—Get a quote today!

CNC Turning Service

Custom CNC Turning Services

Ultra-Fast Production – High-speed turning delivers parts in as fast as 2 days, reducing lead times.
Perfect for High-Volume Runs – Automated processes ensure identical precision across 1 to 100,000+ parts.
Seamless Integration with Milling – Combine turning & milling for complex hybrid parts without extra setups
Minimized Tool Wear = Lower Costs – Advanced tool paths extend tool life, reducing machining expenses.
Flawless Finishes – Achieve ±0.0005” (±0.0127mm) accuracy with smooth surfaces, reducing post-processing.
Works with 70+ Materials – Aluminum, Stainless Steel, Brass, Titanium, Plastics, and more.
Boost efficiency & precision—Get a quote today!

CNC Routing Services

Custom CNC Routing Services

High-Speed Cutting – 50% faster production, parts ready in 2-5 days.s parts in as fast as 2 days, reducing lead times.
Large Format Capability – Handles sheets up to 4’ x 8’ (1200mm x 2400mm) with ±0.005” (±0.127mm) accuracy
Lower Costs, Less Waste – Optimized nesting saves up to 30% on material costs.
Versatile Materials – Cuts plastics, composites, wood, acrylic, aluminum, and soft metals.
Scalable for Any Order Size – Cost-effective from one-off prototypes to 10,000+ parts
Clean, Smooth Finishes – No post-processing needed, reducing labor costs.
Get precision CNC routing with fast turnaround—Request a quote today!

CNC Machining Finishes

Standard (As-Milled)

As-Machined Finish – Fastest Turnaround Option

The quickest surface finish option, leaving parts with visible tool marks and possible sharp edges or burrs, which can be removed upon request. The surface roughness is approximately 125 µin Ra, ensuring a standard CNC-machined finish.

✔ Fastest Production Time – No additional finishing required
✔ Standard Machined Surface – Visible tool marks, deburring available
✔ Cost-Effective – Ideal for functional prototypes and internal components

Perfect for rapid prototyping, mechanical parts, and cost-sensitive applications.

Bead Blast

Matte Finish – Smooth & Refined Surface

This finish provides a uniform, non-reflective matte appearance with a surface roughness of Ra 32-64 µin.

✔ Smooth Surface Quality – No visible tool marks, Ra 32-64 µin
✔ Non-Reflective Matte Look – Reduces glare and enhances aesthetics
✔ Precision Finish – Ideal for consumer products, aerospace, and industrial parts

Perfect for applications requiring a clean, professional, and refined surface.

Tumbled

Tumbling – Deburring & Surface Smoothing

A batch-based process using vibrating media to remove sharp edges, burrs, and machine marks from exterior surfaces.

✔ Edge & Burr Removal – Smooths CNC parts for safer handling
✔ Surface Finish – Reduces roughness to Ra 32-125 µin
✔ Size Limitations – Parts over 8” (200mm) may require manual review
✔ Batch Efficiency – Ideal for high-volume production

Perfect for automotive, aerospace, and industrial components needing consistent deburring and surface refinement.

Anodized (Type II Or Type III)

Anodizing – Type I, II & III

✔ Type I (Chromic Acid, MIL-A-8625 Type I) – Thin, corrosion-resistant, best for aerospace & precision parts.
✔ Type IB – Thicker than Type I, offers better durability while maintaining low electrical resistance.
✔ Type II (Sulfuric Acid, MIL-A-8625 Type II) – Corrosion-resistant, available in multiple colors (clear, black, red, gold), widely used in aluminum components.
✔ Type IIB – Thinner version of Type II, maintains conductivity for electrical applications.
✔ Type III (Hardcoat, MIL-PRF-8625 Type III, Class 1/2) – Thick, wear-resistant, enhances corrosion protection & durability, ideal for high-performance applications.

Ideal for aerospace, automotive, electronics, and industrial applications requiring enhanced protection and performance.

Titanium Anodize

Titanium Anodizing Finishes (AMS-2488)

✔ Type 1 – Chemical film, enhances corrosion resistance (non-load-bearing applications).
✔ Type 2 (Tiodize, AMS-2488) – Fatigue strength & wear-resistant, dull matte finish (aerospace, medical).
✔ Type 3 – Decorative & corrosion-resistant, adds color variation (identification marking).
✔ Type 4 – High-voltage electrical resistance, used in electronics & aerospace shielding.

Ideal for aerospace, medical, and industrial titanium components requiring enhanced durability and performance.

PTFE Impregnated Hard Anodize

Self-Lubricating Hard Coat Anodizing (AMS-2482 Type 1)

A Type III hard coat anodizing process enhanced with PTFE embedding, creating a self-lubricating, dry-contact surface with superior wear resistance. This finish is ideal for aluminum alloys and titanium, significantly extending product service life while maintaining hard coat protection.

✔ Durability & Low Friction – Reduces wear and enhances performance
✔ Self-Lubricating – Ideal for dry-contact applications
✔ AMS-2482 Type 1 Compliant – Hard coat anodizing with Teflon (Non-Dyed)

Perfect for aerospace, automotive, and industrial applications requiring high-performance, low-maintenance finishes.

Chem Film (Chromate Conversion Coating)

Chem Film Coating (MIL-DTL-5541, TYPE I/II)

A thin protective coating that enhances corrosion resistance while maintaining good electrical conductivity. Ideal as a paint adhesion base, it leaves a yellow/gold finish and adds minimal thickness (0.00001”–0.00004”).

✔ Corrosion Protection – Extends material lifespan
✔ Good Conductivity – Suitable for electrical applications
✔ MIL-DTL-5541, TYPE I/II Compliant – Meets industry standards

Perfect for aerospace, electronics, and military applications requiring lightweight, conductive protection.

Passivation

Passivation for Corrosion-Resistant Steels (ASTM A967, AMS-QQ-P-35, MIL-STD-171, ASTM A380, AMS 2700)

A precision chemical treatment that enhances corrosion resistance for 200 & 300 series stainless steels and precipitation-hardened alloys. This process removes surface contaminants without adding measurable thickness (~0.0000001”), ensuring optimal material integrity.

✔ Enhanced Corrosion Protection – Extends stainless steel lifespan
✔ Zero Dimensional Impact – Maintains precision tolerances
✔ Meets Industry Standards – ASTM A967, MIL-STD-171, AMS 2700 compliance

Ideal for aerospace, medical, and industrial applications requiring high-purity, corrosion-resistant components.

Powder Coat

Powder Coating – Durable, Corrosion-Resistant Finish

In the powder coating process, powdered paint is applied to a part and baked in an oven, forming a strong, wear-resistant layer that offers superior corrosion protection compared to traditional painting methods.

✔ Durability & Protection – Enhanced wear and corrosion resistance
✔ Wide Color Options – Customizable to meet aesthetic needs
✔ Long-Lasting Finish – Ideal for high-performance applications

Explore our powder coating finishes gallery for color samples and design inspiration.

Electropolishing

Electropolishing – Corrosion Resistance & Bright Finish

An electrochemical process that cleans steel parts, enhancing corrosion resistance while creating a brighter, smoother finish. This process removes 0.0001”–0.0025” of material, improving both appearance and durability.

✔ Enhanced Corrosion Resistance – Extends part longevity
✔ Smoother, Brighter Surface – Improves aesthetics and cleanliness
✔ ASTM B912-02 Compliant – Meets industry standards

Ideal for medical, aerospace, and industrial applications requiring precision finishing and corrosion protection.

Electroless Nickel Plating

Nickel Plating – Corrosion, Oxidation, and Wear Protection

A uniform nickel coating that provides enhanced corrosion, oxidation, and wear resistance on irregular surfaces. The process results in a brighter, smoother finish, starting at a thickness of 0.0001”.

✔ Enhanced Protection – Resists corrosion, oxidation, and wear
✔ Improved Aesthetics – Brighter, more polished finish
✔ MIL-C-26074 Compliant – Meets industry standards

Ideal for automotive, aerospace, and industrial applications requiring durable, high-performance finishes.

Silver Plating

Silver Plating – High Solderability & Electrical Conductivity

Silver plating provides excellent solderability and electrical conductivity, though it may be prone to tarnishing over time. The plating thickness ranges from 0.00002” to 0.0003”.

✔ Superior Conductivity – Ideal for electrical and soldering applications
✔ High-Performance – Ensures reliable connections
✔ AMS QQ-S-365D Compliant – Meets industry standards

Perfect for electronics, telecommunications, and high-performance applications requiring superior electrical properties.

Gold Plating

Gold Plating – Corrosion Resistance & Superior Solderability

Gold plating offers exceptional corrosion and tarnish resistance, along with excellent solderability for high-performance applications. Thickness ranges from 0.00002” to 0.00005”, ensuring durability and conductivity.

✔ Corrosion & Tarnish Resistant – Long-lasting protection
✔ High Conductivity & Solderability – Ideal for precision electronics
✔ MIL-G-45204 & ASTM B488 Compliant – Meets industry standards

Perfect for electronics, aerospace, and telecommunications applications requiring high-reliability plating.

Brushed Finish

Brushed Finish – Textured, Uniform, and Aesthetic Surface

Brushing creates a uniform, directional grain on metal surfaces, enhancing both appearance and texture. This finish reduces surface imperfections while providing a matte, satin-like look.

✔ Enhanced Aesthetics – Sleek, modern, and visually appealing
✔ Reduces Surface Imperfections – Smooth and uniform grain pattern
✔ Improved Grip & Wear Resistance – Ideal for high-touch surfaces

Perfect for automotive, consumer electronics, appliances, and architectural applications requiring a refined, non-reflective finish.

Laser Engraving

Laser Engraving – Permanent, High-Precision Marking

Laser engraving uses a high-powered laser to create precise, permanent markings on a variety of materials, ensuring durability and readability without affecting structural integrity.

✔ High Precision & Detail – Sharp, clear markings for logos, serial numbers, and text
✔ Permanent & Wear-Resistant – Resists fading, scratching, and corrosion
✔ Versatile Material Compatibility – Works on metals, plastics, ceramics, and more

Perfect for industrial parts, medical devices, electronics, and branding applications requiring long-lasting, high-contrast identification.

Zinc Plating

Zinc Plating – Corrosion, Oxidation & Wear Protection

Zinc plating applies a uniform protective coating, enhancing corrosion resistance, oxidation prevention, and wear durability, even on irregular surfaces.

✔ Superior Corrosion & Oxidation Resistance – Extends component lifespan
✔ Durable Protective Coating – Reduces wear and surface degradation
✔ ASTM B633-15 Compliant – Meets industry standards

Ideal for automotive, aerospace, and industrial applications requiring reliable surface protection

CNC Machining Materials

CNC Machining Aluminum Alloys

Aluminum Alloys We Offer

✔ 6061-T6 – Strong, corrosion-resistant (structural, aerospace, automotive).
✔ 5052-H32 – High corrosion resistance, fatigue strength (marine, transportation).
✔ 2024-T3 – High strength, fatigue resistance (aerospace, military).
✔ 6063-T5/T6 – Smooth finish, good strength (architectural, extrusion).
✔ 7050-T7451 – High strength, stress-corrosion resistant (aerospace, high-performance).
✔ 7075-T6 – Superior strength-to-weight (aerospace, defense, sporting goods).
✔ MIC-6 – Precision-cast, highly stable (tooling, fixtures).

Ideal for aerospace, automotive, marine, and industrial applications.

CNC Machining Copper Alloys

✔ Copper 101 – 99.99% pure, best for electronics & high-frequency applications.
✔ Copper C110 – High conductivity (IACS 100%), used in electrical components & heat exchangers.
✔ Copper C145 – Tellurium copper, improved machinability, ideal for connectors & precision parts.
✔ Copper C182 – Chromium copper, high strength & wear resistance, used in welding electrodes.
✔ Copper C17510 – Beryllium copper, strong & conductive, perfect for spring contacts & aerospace.
✔ Copper C17500 – Hard, wear-resistant, suited for industrial tooling & high-stress parts.

Ideal for electrical, thermal, aerospace, and industrial applications.

CNC Machining Bronze Alloys

✔ C932 (SAE 660) – Wear-resistant, machinable, ideal for bushings & bearings.
✔ C954 (Aluminum Bronze) – Strong, corrosion-resistant, used in marine & aerospace.
✔ C955 (Nickel Aluminum Bronze) – High strength, anti-galling, great for valves & pumps.
✔ C907 (Tin Bronze) – Ductile, shock-resistant, suited for gears & bearings.
✔ C903 (Naval Bronze) – Superior seawater resistance, perfect for marine use.

Ideal for marine, aerospace, heavy machinery, and industrial applications.

CNC Machining Brass Alloys

✔ C260 (Cartridge Brass) – 70% copper, 30% zinc, high ductility & corrosion resistance, used in electronics & automotive.
✔ C360 (Free-Cutting Brass) – 61.5% copper, 35.5% zinc, 3% lead, best machinability, ideal for fittings, valves & precision parts.
✔ C464 (Naval Brass) – 60% copper, 39% zinc, 1% tin, superior seawater corrosion resistance, perfect for marine & industrial use.
✔ C385 (Architectural Brass) – 58% copper, 39% zinc, 3% lead, strong & machinable, great for decorative & structural applications.
✔ C230 (Red Brass) – 85% copper, 15% zinc, excellent workability & corrosion resistance, used in plumbing & electrical.

Ideal for precision machining in marine, aerospace, industrial, plumbing, and decorative applications.

CNC Machining Stainless Steel Alloys

✔ Nitronic 60 (1.4534) – Wear & galling-resistant (bearings, aerospace).
✔ 15-5 (1.4545) – High strength, corrosion-resistant (aerospace, medical).
✔ 17-4 (1.4542) – Strong, heat-treated, excellent toughness (marine, aerospace).
✔ 18-8 (X5CrNi18-10) – General-purpose, corrosion-resistant (food, industrial).
✔ 303 (1.4305) – Best machinability in stainless steel (fittings, fasteners).
✔ 304 (1.4301) – Excellent corrosion resistance, widely used (food, medical, industrial).
✔ 304L (1.4307) – Low-carbon 304, better weldability (pharmaceutical, chemical).
✔ 316/316L (1.4401 / 1.4404) – Superior corrosion resistance (marine, medical).
✔ 416 (1.4005) – Easy to machine, hardened for wear resistance (automotive, firearms).
✔ 410 (1.4006) – Hardenable, moderate corrosion resistance (cutlery, valves).
✔ 420 (1.4021) – Wear-resistant, used in cutlery (surgical tools, knives).
✔ 440C (1.4125) – Highest hardness, wear-resistant (bearings, high-end tools).

Ideal for aerospace, medical, marine, automotive, and industrial applications.

CNC Machining Steel Alloys

✔ 1018 (1.0402) – Low-carbon, weldable, moderate strength (shafts, fasteners).
✔ 1215 (1.0715) – Free-machining, precise, not weldable (gears, bushings).
✔ 4130 (1.7218) – Strong, tough, weldable (aerospace, automotive).
✔ 4140 (1.7225) – High-strength, wear-resistant (tooling, industrial).
✔ 4140PH (1.7225+QT) – Pre-hardened, no heat treatment needed (molds, structural).
✔ 4340 (1.6582) – Ultra-high strength, tough (aerospace, power transmission).
✔ A2 (1.2363) – Air-hardened, wear-resistant (dies, cutting tools).
✔ O1 (1.2510) – Oil-hardened, tough, sharp edges (knives, punches).

Ideal for aerospace, automotive, tooling, and industrial applications.

CNC Machining Titanium Alloys

✔ Grade 2 (3.7035 / Ti-CP2) – Commercially pure, excellent corrosion resistance, lightweight, weldable (aerospace, medical, marine).
✔ Grade 5 (3.7165 / Ti-6Al-4V) – High strength, heat-resistant, most widely used titanium alloy (aerospace, medical implants, automotive).
✔ Grade 9 (3.7195 / Ti-3Al-2.5V) – Lighter than Grade 5, stronger than Grade 2, ideal for tubing, sports equipment, aerospace.
✔ Grade 23 (3.7164 / Ti-6Al-4V ELI) – Lower oxygen variant of Grade 5, superior biocompatibility (medical implants, surgical tools).

Ideal for aerospace, medical, marine, and high-performance applications.

CNC Machining Zinc Alloys

✔ Zamak 2 (ZnAl4Cu2 / EN 1774 ZP0430) – Highest strength among Zamak alloys, excellent wear resistance (gears, industrial parts).
✔ Zamak 3 (ZnAl4 / EN 1774 ZP0410) – Most common zinc alloy, good balance of strength and ductility (die casting, consumer goods).
✔ Zamak 5 (ZnAl4Cu1 / EN 1774 ZP0410) – Stronger than Zamak 3, slightly less ductile, great for structural components.
✔ Zamak 7 (ZnAl4 / EN 1774 ZP0400) – Ultra-high purity version of Zamak 3, improved fluidity and castability (precision die casting).
✔ ZA-8 (ZnAl8 / EN 1774 ZP0810) – Higher aluminum content, superior strength and hardness (thin-walled castings, industrial parts).
✔ ZA-12 (ZnAl12 / EN 1774 ZP1200) – Excellent strength, impact resistance, used for heavy-duty applications.
✔ ZA-27 (ZnAl27 / EN 1774 ZP2700) – Highest aluminum content, strongest and hardest zinc alloy, ideal for high-load applications.Ideal for die casting,

Custom Material Machining

At LK Tools, we provide precision CNC machining for a wide range of custom materials, sourced from 10,000+ suppliers to meet your exact requirements.

✔ Aluminum – 5083 (3.3547), 7075-T6 (3.4365), MIC-6
✔ Stainless Steel – 304L (1.4307), 316L (1.4404), 17-4 PH (1.4542)
✔ Titanium – Grade 2 (3.7035), Grade 5 (3.7165), Grade 9 (3.7195)
✔ Brass & Bronze – C360 (2.0401), C932 (SAE 660), C955 (2.0975)
✔ Tool Steel – A2 (1.2363), O1 (1.2510), D2 (1.2379), H13 (1.2344)
✔ Copper – C110 (2.0060), C145 (2.1545), C182 (2.1293)
✔ Zinc Alloys – Zamak 3 (ZP0410), ZA-12 (ZP1200), ZA-27 (ZP2720)

If your required material is not listed, select “Custom” in the LK Tools material drop-down and submit your quote. Our expert machinists will ensure precision, quality, and fast turnaround.

Plastic CNC Machining Materials

CNC Machining ABS Plastic

✔ ABS (ISO 2580-1) – Strong, impact-resistant (consumer products, automotive, electronics).
✔ ABS Black – UV-resistant, durable (outdoor, industrial applications).
✔ ABS Flame Retardant (UL94 V-0) – Fire-resistant (electrical, aerospace components).
✔ ABS+PC (ISO 7391-1) – Heat-resistant, high-strength (enclosures, automotive parts).

Perfect for durable, high-performance application

Acrylic for CNC Machining

CNC Machining Acrylic (PMMA)

✔ Acrylic (PMMA, ISO 7823-1) – Glass-like clarity, impact-resistant, ideal for displays, signage, and lighting.
✔ Acrylic Clear (ISO 7823-1) – High transparency (up to 92% light transmission), great for optical and decorative applications.
✔ Acrylic UV-Resistant (ISO 7823-2) – Enhanced weather resistance, perfect for outdoor and automotive parts.
✔ Acrylic Impact-Modified (ISO 7823-1) – Improved toughness, used in safety shields and protective covers.

Ideal for optical, outdoor, and high-durability applications.

Delrin for CNC Machining

CNC Machining Delrin (Acetal) Plastic

✔ Acetal (POM, ISO 9988-1) – Low friction, high wear resistance, ideal for gears, bearings, and precision parts.
✔ Delrin 100 (POM-H, ISO 9988-1) – High stiffness & strength, used in structural and load-bearing components.
✔ Delrin 150 (POM-H, ISO 9988-1) – Improved impact resistance, great for mechanical and industrial applications.
✔ Acetal Copolymer (POM-C, ISO 9988-2) – Better chemical resistance & lower moisture absorption, suited for food-grade and medical use.

Perfect for automotive, industrial, and precision engineering applications

Garolite G10 / Phenolic for CNC Machining

CNC Machining Garolite (G-Grade Laminates)

✔ Garolite G10 (FR4, IEC 60893-3-2) – Flame-resistant, high strength, used in electronics & aerospace.
✔ Garolite G10 (Non-FR, IEC 60893-3-2) – Non-flame retardant, high dielectric strength, ideal for insulation & mechanical applications.
✔ Garolite G11 (FR5, IEC 60893-3-2) – Higher heat resistance than G10, perfect for high-temperature electrical components.
✔ Garolite G7 (IEC 60893-3-4) – Silicone-based, heat-resistant, used in thermal & electrical insulation.
✔ Garolite G9 (IEC 60893-3-5) – Melamine-based, arc-resistant, suited for switchgear & transformers.
✔ Garolite G5 (IEC 60893-3-5) – High mechanical strength, excellent electrical insulation, great for precision components.

Ideal for aerospace, electrical, and industrial applications requiring strength, insulation, and durability.

HDPE for CNC Machining

CNC Machining HDPE (High-Density Polyethylene)

✔ HDPE Natural (PE300, ISO 15527) – Moisture & chemical-resistant, ideal for food containers, tanks, and seals.
✔ HDPE Black (PE500, ISO 15527) – UV-resistant, durable, perfect for outdoor and marine applications.
✔ HDPE UV-Stabilized (PE1000, ISO 15527) – Superior weather resistance, used in construction, piping, and signage.
✔ HDPE Antistatic (ISO 15527) – Prevents static buildup, suited for electronics and conveyor components.

Ideal for outdoor, marine, industrial, and food-grade applications.

Nylon 6/6 for CNC Machining

CNC Machining Nylon (PA – Polyamide)

✔ Nylon 6/6 (PA66, ISO 16396-1) – High strength, rigidity, heat-resistant, ideal for gears, bushings, and mechanical parts.
✔ Nylon 6 (PA6, ISO 16396-1) – Better impact resistance, slightly lower strength than PA66, used in automotive and industrial applications.
✔ Glass-Filled Nylon 6/6 (PA66-GF30, ISO 16396-2) – 30% glass fiber reinforced, higher stiffness & wear resistance, perfect for structural components.
✔ Oil-Filled Nylon (PAO, ISO 16396-1) – Self-lubricating, reduces friction & wear, great for bearings and sliding applications.
✔ MD Nylon (Molybdenum Disulfide Filled, ISO 16396-1) – Enhanced wear resistance & lower friction, used for high-load bushings & gears.

Ideal for industrial, automotive, aerospace, and structural applications requiring durability and chemical resistance.

PC for CNC Machining

CNC Machining Polycarbonate (PC)

✔ PC (ISO 7391-1) – High impact strength, transparent, durable, ideal for automotive, aerospace, and protective components.
✔ PC Black (ISO 7391-1) – UV-resistant, strong, used for outdoor and industrial applications.
✔ PC Flame Retardant (UL94 V-0, ISO 7391-1) – Enhanced fire resistance, perfect for electrical and aerospace components.
✔ PC-ABS (ISO 7391-1 / ISO 2580-1) – Stronger, heat-resistant blend, great for enclosures and high-stress applications.
✔ Glass-Filled PC (PC-GF20, ISO 7391-1) – 20% glass fiber reinforced, superior stiffness & wear resistance, used in structural and mechanical applications.

Ideal for aerospace, automotive, industrial, and high-performance applications.

PEEK for CNC Machining

CNC Machining PEEK (Polyether Ether Ketone)

✔ PEEK (ISO 23936-1) – High tensile strength, heat-resistant (up to 250°C), ideal for aerospace, automotive, and medical applications.
✔ PEEK USP Class VI (TECAPEEK, ISO 10993-1) – Biocompatible, FDA-approved, perfect for medical implants & food processing.
✔ PEEK GF30 (ISO 23936-1) – 30% glass fiber reinforced, improved stiffness & wear resistance, used in structural & mechanical components.
✔ Carbon-Filled PEEK (PEEK CF30, ISO 23936-1) – 30% carbon fiber, superior strength & low friction, ideal for high-load bearings & aerospace parts.
✔ PEEK ESD (ISO 23936-1) – Electrically conductive, prevents static buildup, great for electronics & semiconductor manufacturing.

Ideal for high-temperature, high-stress, chemical-resistant applications in aerospace, medical, and industrial sectors.

Polypropylene for CNC Machining

CNC Machining Polypropylene (PP)

✔ PP Homopolymer (PP-H, ISO 1873-1) – High strength, rigid, lightweight, ideal for industrial, chemical tanks, and piping.
✔ PP Copolymer (PP-C, ISO 1873-1) – Tougher, impact-resistant, used in automotive, medical, and food-grade applications.
✔ PP Glass-Filled (PP-GF30, ISO 1873-1) – 30% glass fiber reinforced, enhanced stiffness & heat resistance, perfect for structural and mechanical components.
✔ PP Flame Retardant (PP-FR, UL94 V-0, ISO 1873-1) – Fire-resistant, durable, suited for electrical enclosures and aerospace applications.
✔ PP UV-Stabilized (PP-UV, ISO 1873-1) – Improved weather resistance, great for outdoor and marine use.
✔ PP Conductive (PP-CN, ISO 1873-1) – Electrically conductive, prevents static buildup, used in electronics and semiconductor industries.
✔ PP High-Heat (PP-HH, ISO 1873-1) – Enhanced thermal resistance, suitable for high-temperature industrial parts.

Ideal for chemical processing, electrical, automotive, and industrial applications requiring durability and resistance.

PTFE for CNC Machining

CNC Machining PTFE (Teflon, ISO 13000-1)

✔ PTFE Virgin (ISO 13000-1) – Pure PTFE, excellent chemical resistance & dielectric properties, ideal for seals, gaskets, and electrical insulation.
✔ PTFE Glass-Filled (PTFE-GF25, ISO 13000-1) – 25% glass fiber, enhanced wear & creep resistance, perfect for bearings and valve seats.
✔ PTFE Carbon-Filled (PTFE-CF25, ISO 13000-1) – 25% carbon, improved strength & thermal conductivity, used in high-load applications.
✔ PTFE Bronze-Filled (PTFE-BF40, ISO 13000-1) – 40% bronze, excellent wear resistance & dimensional stability, suited for hydraulic and mechanical components.
✔ PTFE Anti-Static (PTFE-AS, ISO 13000-1) – Conductive, prevents static buildup, great for electronics and semiconductor applications.

Ideal for aerospace, chemical processing, electrical, and industrial applications requiring extreme durability and resistance

UHMW-PE for CNC Machining

CNC Machining UHMW PE (Ultra-High Molecular Weight Polyethylene, ISO 15527)

✔ UHMW PE Natural (PE1000, ISO 15527) – High wear resistance, low friction, impact-resistant, ideal for conveyor systems & industrial components.
✔ UHMW PE Black (PE1000-B, ISO 15527) – UV-resistant, durable, perfect for outdoor and marine applications.
✔ UHMW PE Anti-Static (PE1000-AS, ISO 15527) – Prevents static buildup, used in electronics & material handling.
✔ UHMW PE Glass-Filled (PE1000-GF, ISO 15527) – Enhanced stiffness & wear resistance, great for high-load applications.
✔ UHMW PE Reprocessed (PE1000-R, ISO 15527) – Cost-effective, sustainable option, suited for general-purpose wear parts.

Ideal for industrial, automotive, food processing, and high-impact applications requiring durability and low friction.

PVC for CNC Machining

CNC Machining PVC (Polyvinyl Chloride, ISO 11896-1)

✔ PVC Type 1 (PVC-U, ISO 11896-1) – Rigid, high chemical resistance, ideal for pipes, tanks, and industrial applications.
✔ PVC Type 2 (PVC-M, ISO 11896-1) – Modified for improved impact resistance, used in construction and mechanical components.
✔ PVC-C (Chlorinated PVC, ISO 11896-1) – Higher temperature resistance, perfect for hot water and chemical processing.
✔ PVC Transparent (ISO 11896-1) – Clear, lightweight, weather-resistant, great for windows and protective enclosures.
✔ PVC Anti-Static (ISO 11896-1) – Prevents static buildup, used in electronics and cleanroom environments.

Ideal for chemical processing, electrical insulation, construction, and industrial applications.

ULTEM 1000 for CNC Machining

CNC Machining ULTEM (Polyetherimide, PEI, ISO 24025-1)

✔ ULTEM 1000 (PEI, ISO 24025-1) – Unfilled, high dielectric strength, heat-resistant (up to 340°F/170°C), ideal for electrical, aerospace, and medical components.
✔ ULTEM 2300 (PEI-GF30, ISO 24025-1) – 30% glass-filled, enhanced stiffness & dimensional stability, used in high-strength structural applications.
✔ ULTEM 2100 (PEI-10% GF, ISO 24025-1) – Moderate reinforcement, improved strength & rigidity, great for precision mechanical parts.
✔ ULTEM 2200 (PEI-20% GF, ISO 24025-1) – Balanced strength & impact resistance, suited for automotive and industrial components.
✔ ULTEM 5000 (ISO 24025-1) – High-temperature variant, superior thermal stability, perfect for extreme environments.

Ideal for aerospace, medical, automotive, and electrical insulation applications requiring high heat resistance and chemical durability

CNC Machining Tolerances

Maximum Part Size

CNC Machining Capabilities & Tolerances

✔ Milling Capacity – Up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm).
✔ Lathe Capacity – Up to 62” (1,575 mm) length and 32” (813 mm) diameter.
✔ Standard Tolerances – ±0.005” (±0.127 mm) for general machining.
✔ Tight Tolerances – Up to ±0.0005” (±0.0127 mm) for high-precision applications.
✔ Surface Roughness – As low as Ra 32 µin (0.8 µm), with finer finishes available on request.

Precision CNC machining for complex and high-accuracy parts

Precision Tolerances

✔ Tight Tolerances – Up to ±0.001” (±0.025 mm) for high-precision machining.
✔ Ultra-Precision – As tight as ±0.0005” (±0.0127 mm) for specialized applications.
✔ GD&T Compliance – Manufactured per ISO 1101 / DIN EN ISO 1101.
✔ Custom Tolerances – Machining and inspection per customer drawings & specifications.

LK Tools ensures precision manufacturing to meet the highest industry standards.

Minimum Feature Size

Minimum Feature Size & Tolerances

✔ Standard Minimum Feature Size – 0.020” (0.50 mm) (varies by geometry & material).
✔ For Metals – 0.010” – 0.020” (0.25 – 0.50 mm), per ISO 2768-mK / DIN ISO 2768-mK.
✔ For Plastics & Composites – 0.015” – 0.030” (0.38 – 0.75 mm), per ISO 2768-c / DIN ISO 2768-c.
✔ Fine Machining – As low as 0.005” (0.127 mm) for high-precision components.
✔ Ultra-Precision Micro-Machining – Down to 0.002” (0.05 mm) for specialized applications.

Exact tolerances depend on material, machining process, and part complexity.

Edge Condition

Edge Condition & Tolerances

✔ Default Edge Break – All sharp edges are broken and deburred unless specified.
✔ Standard Edge Break – 0.005” – 0.015” (0.127 – 0.381 mm) chamfer or radius, per ISO 13715.
✔ Precision Edge Break – As small as 0.002” (0.050 mm) for tight-tolerance parts, requiring manual finishing.
✔ Unbroken Sharp Edges – Maintained upon request with ±0.001” (±0.025 mm) tolerance, per ISO 2768-fH.
✔ Deburring Tolerance – Burr height ≤ 0.003” (0.076 mm), per ISO 13715.
✔ Custom Edge Requirements – Defined per drawing specifications and GD&T callouts (ISO 1101).

Ensuring compliance with ISO standards and machining best practices for safe and precise edges

Surface Finish

Surface Finish

✔ Standard Finish – As-machined: 125 Ra µin (3.2 Ra µm) or better, per ISO 4287 / ISO 1302.
✔ Tighter Tolerance Finishes – Available upon request:

63 Ra µin (1.6 Ra µm) for improved smoothness
32 Ra µin (0.8 Ra µm) for semi-polished surfaces
16 Ra µin (0.4 Ra µm) or better for precision applications
✔ Custom Finishes – Defined per ISO 4288 / DIN EN ISO 1302 specifications.

Additional finishing options can be specified when requesting a quote.

Hardness Tolerance Standards

Hardness Tolerance Standards

✔ Standard Hardness Measurement – Defined per ISO 6508 (Rockwell), ISO 6507 (Vickers), ISO 6506 (Brinell).
✔ Typical Hardness Ranges (Material-dependent):

Rockwell (HRC/HB): ±1.0 HRC / ±10 HB
Vickers (HV): ±15 HV
✔ Precision Hardness Control – Available upon request for critical applications, per ISO 14577.
✔ Custom Hardness Requirements – Defined per ISO specifications and project needs.

Hardness specifications should be confirmed when requesting a quote.

CNC Machining Design Guidelines

Internal Corner Fillets

✔ Recommended Fillet Size – Design internal corner fillets to be 0.020” – 0.050” (0.50 – 1.27 mm) greater than the standard drill radius.
✔ Drill Diameter to Depth Ratio – Follow a 1:6 ratio for general applications (1:4 recommended for improved tool life and surface finish).
✔ Example Fillet Guidelines (Based on common drill sizes):

Ø 0.125” (3.18 mm) drill → Fillet radius: 0.085” – 0.100” (2.16 – 2.54 mm)
Ø 0.250” (6.35 mm) drill → Fillet radius: 0.145” – 0.175” (3.68 – 4.45 mm)
Ø 0.500” (12.70 mm) drill → Fillet radius: 0.270” – 0.325” (6.86 – 8.26 mm)

✔ Custom Fillet Requirements – Specified per ISO 286 and design tolerances.

Optimizing internal fillets improves machining efficiency, reduces tool wear, and enhances part durability.

Floor fillets

Floor Fillets

✔ Recommended Floor Fillet Size – Should be 0.010” – 0.030” (0.25 – 0.76 mm) smaller than internal corner fillets to allow the same tool to clear material efficiently.
✔ Guideline for Floor vs. Corner Fillets:

Corner Fillet: 0.100” (2.54 mm) → Floor Fillet: 0.070” – 0.090” (1.78 – 2.29 mm)
Corner Fillet: 0.150” (3.81 mm) → Floor Fillet: 0.120” – 0.140” (3.05 – 3.56 mm)
Corner Fillet: 0.250” (6.35 mm) → Floor Fillet: 0.220” – 0.240” (5.59 – 6.10 mm)

✔ Machining Best Practices – Matching floor fillets with tool corner radius enhances tool life and improves machining efficiency.
✔ Custom Floor Fillet Specifications – Defined per ISO 286 and project requirements.

Optimizing floor fillets minimizes tool changes, reduces machining time, and ensures smooth internal transitions.

Undercuts

Undercuts

✔ Standard Undercut Sizes – Should follow ISO 509 / DIN 509 for accessibility and machining efficiency.
✔ Recommended Dimensions:

Width: 0.020” – 0.060” (0.50 – 1.52 mm) larger than the cutting tool width.
Depth: 0.010” – 0.030” (0.25 – 0.76 mm) shallower than the maximum tool reach to prevent tool deflection.
✔ Placement Guidelines – Undercuts should be positioned at least 2× tool diameter away from internal corners to allow proper tool access.
✔ Standard Groove Undercut Sizes (Based on common tool sizes):
Ø 0.125” (3.18 mm) tool → Undercut width: 0.145” – 0.185” (3.68 – 4.70 mm)
Ø 0.250” (6.35 mm) tool → Undercut width: 0.270” – 0.310” (6.86 – 7.87 mm)
Ø 0.500” (12.70 mm) tool → Undercut width: 0.520” – 0.560” (13.21 – 14.22 mm)

✔ Custom Undercuts – Must be specified in drawings and comply with ISO 286 tolerances.

Proper undercut design improves machinability, reduces tool breakage, and ensures clean, precise cuts

Tapped/Threaded Hole Depth

Tapped/Threaded Hole Depth ✔ Clearance Beyond Thread Depth – Provide an extra 0.050” – 0.100” (1.27 – 2.54 mm) of tool clearance beyond the tapped hole depth to ensure full thread formation.
✔ Recommended Thread Engagement (Material-dependent):

Soft Metals (Aluminum, Brass, Plastics) → 1.5× diameter
Medium Hardness Metals (Steel, Stainless Steel) → 1.0× – 1.5× diameter
Hard Metals (Titanium, Tool Steel) → 0.75× – 1.0× diameter
✔ Standard Clearance Depth (Based on thread size):
M3 / #4-40 → Tap depth: 6mm (0.236”), clearance depth: 7mm (0.276”)
M6 / 1/4-20 → Tap depth: 12mm (0.472”), clearance depth: 13.5mm (0.531”)
M10 / 3/8-16 → Tap depth: 20mm (0.787”), clearance depth: 22mm (0.866”)
✔ Blind Hole Best Practices – Avoid full-depth threading in blind holes; leave at least 2-3 unthreaded pitches at the bottom.
✔ Custom Thread Depths – Defined per ISO 965 / ISO 286 tolerances and application needs.

Optimizing thread depth ensures strong, fully-formed threads while preventing tool breakage and chip buildup.

Complexity Optimization

Complexity Optimization

✔ Minimize Small Cuts – Avoid features smaller than 0.020” (0.50 mm) unless functionally required to reduce machining time and costs.
✔ Recommended Feature Size:

Minimum Slot Width – 0.062” (1.57 mm) for standard end mills
Minimum Hole Diameter – 0.040” (1.00 mm) for standard drills; 0.020” (0.50 mm) for micro-drilling
Minimum Engraving Depth – 0.010” (0.25 mm) for visibility without excessive tool wear
✔ Optimal Wall Thickness:
Metal Parts → ≥0.020” (0.50 mm)
Plastic Parts → ≥0.040” (1.00 mm)
✔ Feature Consolidation – Combine pockets and slots when possible to reduce tool changes and machining time.
✔ Custom Feature Requirements – Defined per ISO 2768-mK for general tolerances.

Reducing unnecessary complexity lowers machining costs, improves part strength, and enhances production efficiency.

LK Tools is Your Best Reliable Partner

Trusted by engineers, product managers, and purchasing leaders at the world's most successful companies and universities

Why Choose LK Tools for Your Custom CNC Machining Services?

Do you want to customize 1 part quickly? LK Tools provides you with 3-7 day prototype samples and FAI reports.

3-7 Day Sample Delivery

We offer rapid prototype CNC Machining services to speed up your design validation and shorten your time-to-market.

MOQ from 1 Piece

CNC Machining starting with MOQ 1 for cost-effective prototyping of your project.

150+ Material Options

We provide 150+ Material Selection, ensuring optimal performance and design freedom for your unique application.

Free DFM Analysis

Get a free DFM report to optimize your design and cut production costs by 30-50%.

55+ Finishing Options

We offer 55+ surface finishes to achieve the perfect look and functionality for your parts

Quality Control

With ±0.01mm tolerance and ISO 9001 certification, FAI,COC will meet your parts request.

How We Handle Details Makes Us Different

What is Advantages of CNC Machining for Your Projects ?

LK Tools’ CNC machining delivers 0.001-inch precision, 1000 parts per day, and 15% material savings, maximizing your ROI

Fast & Precise – CNC-milled prototypes and production parts in 2-5 days.
Material Options – Over 30+ plastics & metals, including Aluminum 6061/7075, Stainless Steel 304/316, Titanium, PEEK, Delrin, Nylon.
Scalable Production – From 1 to 100,000+ parts with competitive pricing
Certifications – AS9100D, ISO 9001:2015, ISO 13485, IATF 16949:2016, ITAR Registered.
Quality & Finishing – FAI reports, material certifications, plus anodizing & chromate plating.
High-precision machining for aerospace, automotive, medical, and industrial applications.
15+ expert engineers with AI to reduce your design risks by up to 30% and lower manufacturing costs by 20-50% before production begins
Factory Pricing – 30% material savings, 55% tariff cuts, zero platform fees
Risk-Free Guarantee – 100% refund or free rework in 48h, including shipping

1 pcs precision complex aluminum cnc parts 3.jpg

We Aim to Contribute Well to Your Company

You Design It, We'll Make It – Custom Parts Made Just for You

Step 1

Upload Design Submit the important details about your project.

Step 2

DFM Review We perform a design analysis to optimize your parts.

Step 3

Confirm Quote We begin working with our team to make your ideas a reality

Step 4

Samples with FAI report to your confirm

Step 5

Production Starts-Your custom parts

Step 6

Delivered straight to your doorstep 100% inspection

Are you looking for solutions to CNC machining parts problems？

Struggling with machining defects, material choices, or high costs? We offer DFM support, 150+ materials,

and 55+ anodized finishes to optimize your parts from start to finish.

Parts Out-of-Tolerance

Regular Machine Calibration, Skilled Machinists, SPC, Proper Tooling, Rigorous Inspection, Temperature Control

Rough Surface Finish

Ensure smooth finish with optimized cutting, sharp tools, proper cooling, and stable machining paths

cnc machining parts with poor surface finish

Burrs & Sharp Edges

Sharp Tools and Proper Cutting Parameters, Dedicated Deburring Processes, Edge Breaking

Material Selection Issues

Material Expertise, Material Recommendations, Material Data Sheets

Design for Manufacturability (DFM)

LK Tools provide feedback to you design to improve manufacturability and reduce costs

Lead Time & Delivery

LK Tools: Fast lead times, streamlined production, and proactive communication powered by our ERP system

55+ custom anodised colours to meet your design need

We offer 55+ custom anodized colors to match your design needs. Our anodizing includes #100 and #120 sandblasted finishes,

ensuring 10-year durability without fading. Choose from a wide range of Pantone colors, tailored to your specification

sandblast with anodized black cnc machining parts

sandblast with anodized red cnc machining parts

sandblast with anodized yellow cnc machining parts

sandblast with anodized blue cnc machining parts

sandblast with anodized purple 5 axis machining parts

sandblast with anodized green 5 axis machining parts

sandblast with anodized brown 5 axis machining parts

sandblast with anodized sliver 5 axis machining parts

Industries We Serve

150+ Industries – Automotive, Medical, Aerospace, Robotics, Industrial Equipment, Electronics & More

Certifications Report

Your Parts Machining Questions, Our Solutions

Your CNC Machining Problems, Our Precision Solutions – Fast, Reliable, and Cost-Effective

At LK Tools, we provide 35+ custom CNC machining solutions for metal and plastic parts with ±0.005mm precision. We help you save up to 20% on manufacturing costs, offering quick turnaround—7-10 days for prototypes and 15-20 days for production runs.

Why Choose LK Tools?

80+ CNC Machines for high-volume and complex parts.
Cost reduction of up to 20% through optimized processes.
Precision tolerances as tight as ±0.005mm.
Fast lead times: prototypes in 7-10 days, production in 15-20 days.
Free DFM (Design for Manufacturability) analysis to ensure your design is production-ready.
Sample fee deduction: The cost of your sample is credited toward your order if you proceed with full production.
Strict quality control for consistent, reliable results.

Industries We Serve: Automotive, Aerospace, Medical Devices, Electronics, Industrial Machinery.

Get the precision, speed, and cost efficiency you need with LK Tools.

Do you provide samples? Is it free or extra?

Yes, we provide CNC machining samples. The CNC milling sample fee typically ranges from $50 to $200, depending on the product geometry. The fee will be refunded when you place a bulk order of 100 pieces or more

What is your delivery timeline for mass production?

Sample delivery: 3-7 days
Mass production: Typically 7-35 days, depending on the order size and part complexity. For large orders, production might take up to 40 days. We can expedite this upon request for urgent needs.

Can you sign NDA agreements?

Standard practice. We’ve executed 387 NDAs this year covering 58 jurisdictions. All employees undergo annual IP protection training

What if I need to modify designs after sampling?

First 3 design iterations are free within 30 days. Our engineers provide DFM optimization videos showing simulated stress distribution

How do you reduce manufacturing costs and design risks?

✓ 20-30% cost reduction through material optimization and process streamlining.

✓ 30%+ risk mitigation via stress simulations and industry standards (API/ASME).

✓ 24-hour DFM report with actionable steps to cut machining time and material waste.

Free sample analysis for orders under $50.

How does your AI-driven DFM analysis prevent costly design errors pre-production?"

36-hour automated DFM feedback covering 55+ manufacturability metrics
92% reduction in first-piece scrap rates through virtual machining simulations
89% design optimization success rate validated by 500+ automotive projects

Can you ship partial quantities for large orders?

Yes. Our intelligent production scheduling allows multi-batch delivery with synchronized inventory tracking. Last month we completed 17 phased shipments for NASA contractor parts

Do you provide material substitution analysis?

Our cross-material database offers 82 alternative materials with DFM comparison reports. Recently saved a client 63% cost by switching from Titanium to PH stainless steel

How are our proprietary designs protected?

Factory-wide Class III security zones with:

• Biometric access control

• Encrypted file transfer (AES-256)

• Automatic digital watermarking

• Secure cloud backup

What surface treatments prevent salt spray corrosion?

Our micro-arc oxidation (MAO) reaches 1,200 hours neutral salt spray test (ASTM B117), forming 50-300μm ceramic coating on aluminum alloys

How to validate batch consistency?

① Full-dimension CMM report

② 30x sample photos

③ Statistical process control (SPC) charts

④ Material traceability codes

What if I don’t have drawings for my part?

If you don’t have a drawing, you can send us a physical sample, and we will reverse engineer it or offer a better design solution. We can also help with part simplification or design 3D model for manufacturability (DFM) to reduce complexity and manufacturing costs.

Do you provide design capabilities?

Yes, our engineering team can assist with product design, material selection, and process optimization to ensure manufacturability, cost-efficiency, and reduced risks.

Can you accommodate urgent delivery requests?

Yes, we can accommodate urgent delivery requests. We have the flexibility to adjust production schedules and expedite both production and shipping. Depending on your needs, we can prioritize your order to ensure delivery within 1-2 weeks, or even within 3-7 days for urgent sample shipments. Just let us know your required delivery date, and we’ll do everything we can to meet it.

How do you ship the products?

We offer flexible shipping options, including:

Sea Freight (For large orders, 15-30 days transit)
Air Freight (7-10 days transit)
Express Delivery (FedEx, DHL, UPS—3-7 days)
We can assist with customs clearance and delivery to your location, including port-to-door service.

What are your payment terms?

Our standard payment terms are 50% deposit with the order and 50% before shipment. We accept PayPal for smaller orders (up to $5,000) and T/T (bank transfer) for larger orders. Please contact us if you need alternative payment methods.

What types of surface finishes do you offer?

We offer a variety of surface finishes, including:

Anodizing (available in multiple colors: clear, black, red, blue, gold, etc.)
Polishing (mirror finish, satin)
Powder Coating (matte, glossy, textured)
Electroplating (chrome, nickel, gold)
Shot Blasting
Zinc Plating (yellow, black, or clear)
E-Coating
We can also meet specific surface roughness requirements, typically Ra 0.2 to 0.8 µm

How do you ensure product quality?

We ensure product quality through:

100% inspection before shipping
ISO 9001 certified processes
FAI (First Article Inspection)
Certificate of Conformance (COC)
Detailed Material Test Reports (MTR) for specific parts, including composition and performance testing.

How can we reduce import tariffs when exporting to North America/Europe?

Smart Product Classification: Redesign components to qualify for duty-free HTS codes (e.g., 8537.10 for valve parts).
Regional Value Optimization: Ensure >55% North American value content under USMCA for tariff exemptions.
Duty Recovery Programs: File Chapter 19 U.S. Customs refund claims for materials re-exported after processing.

How do you ensure my CNC parts arrive undamaged?

Military-Grade Protection: Custom-fitted foam inserts, honeycomb shock absorbers, and IP67-rated waterproof packaging.
Global Shipping Options: Choose DHL Express (3-5 days) or Sea Freight (cost-optimized) with real-time tracking.
Guarantee: If parts are damaged in transit, we’ll remake and reship for free within 72 hours.

What if I’m not satisfied with the final product?

30-Day Full Refund: Approved return requests receive 100% money back (including shipping fees).
Free Rework Priority: Prefer adjustments? Send specific feedback, and we’ll reprocess parts in 48 hours.
Zero-Hassle Process: Simply email sales@lkchinamfg.com with order # and photos. We handle the rest.

How do I know you’re using genuine materials?

Full transparency from mill to machine.

Batch Certification: Scanned MTRs (Mill Test Reports) attached to every order.
XRF Gun Verification: Cross-check alloy composition on delivery.
Material Sourcing: Opt for Conflict-Free titanium, or recycled 6061 aluminum (CN/US/EU origins).

Why Trust Us?

Relax. We’ve delivered 14,500+ CNC projects for Fortune 500 engineers and startups alike.

-100% Refund Promise: No fine print – if we fail, you don’t pay.

-Dedicated Engineer: One point of contact from quote to delivery

YouTube, Vimeo & Self Hosted

Embed videos to your sites and control various fields with our most powerful video widget of ElementsKit.

5 Axis CNC Machining

CNC Machining

CNC Turning Service

CNC Turning

4 Axis CNC Machining

CNC Machining

Steel Market Research Report

Stand out with packaging that reflects your brand’s excellence. Start with a quote
and let’s craft bags that make your products shine. Connect with us now—
transform your packaging, transform your brand；

Contact Us Now !

Before starting to use our services, please fill in the following form to let us know which type of stainless steel duct system you want to import from China.

He lost his bottle blatant faff about hunky.

Our Story

Material

Solutions

Support

Address

Sales@lkchinamfg.com

+8615814499188

Optimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.

Ready for Full-Service Production?

Engineers-Led Design Machining | Factory-Direct, No Middlemen

Custom Online CNC Machining Solutions on Demand Service

Start A New Free Project Quote

20 years OEM/ODM for 150+ Brands

48+ surface finishes for custom aesthetics

Save 30% on your project budget

Your Complete Custom Part Manufacturing Services

5 Axis CNC Machining

4 Axis CNC Machining

3 Axis CNC Machining

CNC Turning Service

What is 5 Axis CNC Machining at LK Tools?

What is CNC Machining?

How it works？

Types of CNC Machines

Materials

Applications

Over 150 Premium Materials for Custom Machining Solutions

Brass for machining

Stainless Steel for Machining

Nylon for Machining

Aluminum for Machining

ABS Plastic Machining

Polycarbonate(PC)Machining

Your guide to machining,covering tolerances, materials, finishes, and applications materials, finishes, and applications

CNC Machining Services

Custom 3-Axis CNC Milling Services

Custom 4-Axis CNC Milling Services

Custom 5-Axis CNC Milling Services

Custom CNC Turning Services

Custom CNC Routing Services

CNC Machining Finishes

As-Machined Finish – Fastest Turnaround Option

Matte Finish – Smooth & Refined Surface

Tumbling – Deburring & Surface Smoothing

Anodizing – Type I, II & III

Titanium Anodizing Finishes (AMS-2488)

Self-Lubricating Hard Coat Anodizing (AMS-2482 Type 1)

Chem Film Coating (MIL-DTL-5541, TYPE I/II)

Passivation for Corrosion-Resistant Steels (ASTM A967, AMS-QQ-P-35, MIL-STD-171, ASTM A380, AMS 2700)

Powder Coating – Durable, Corrosion-Resistant Finish

Electropolishing – Corrosion Resistance & Bright Finish

Nickel Plating – Corrosion, Oxidation, and Wear Protection

Silver Plating – High Solderability & Electrical Conductivity

Gold Plating – Corrosion Resistance & Superior Solderability

Brushed Finish – Textured, Uniform, and Aesthetic Surface

Laser Engraving – Permanent, High-Precision Marking

Zinc Plating – Corrosion, Oxidation & Wear Protection

CNC Machining Materials

Aluminum Alloys We Offer

CNC Machining Copper Alloys

CNC Machining Bronze Alloys

CNC Machining Brass Alloys

CNC Machining Stainless Steel Alloys

CNC Machining Steel Alloys

CNC Machining Titanium Alloys

CNC Machining Zinc Alloys

Custom Material Machining

CNC Machining ABS Plastic

CNC Machining Acrylic (PMMA)

CNC Machining Delrin (Acetal) Plastic

CNC Machining Garolite (G-Grade Laminates)

CNC Machining HDPE (High-Density Polyethylene)

CNC Machining Nylon (PA – Polyamide)

CNC Machining Polycarbonate (PC)

CNC Machining PEEK (Polyether Ether Ketone)

CNC Machining Polypropylene (PP)

CNC Machining PTFE (Teflon, ISO 13000-1)

CNC Machining UHMW PE (Ultra-High Molecular Weight Polyethylene, ISO 15527)

CNC Machining PVC (Polyvinyl Chloride, ISO 11896-1)

CNC Machining ULTEM (Polyetherimide, PEI, ISO 24025-1)

CNC Machining Tolerances

Precision Tolerances

Minimum Feature Size & Tolerances

Edge Condition & Tolerances

CNC Machining Design Guidelines

LK Tools is Your Best Reliable Partner

Why Choose LK Tools for Your Custom CNC Machining Services?

3-7 Day Sample Delivery

Your guide to machining,covering tolerances, materials,
finishes, and applications materials, finishes, and applications