CNC Machining Services for Custom Parts
6CNC provides on-demand CNC machining for precision prototypes and small-batch production in metal and plastic. Upload your CAD files for engineering review, a clear quotation, and a manufacturing plan built around your critical requirements.
Select the Right CNC Process for Your Part
The best manufacturing route is not automatically the machine with the most axes. It is the process that reaches the required features, controls their functional relationships, and avoids unnecessary setups, cost, and inspection complexity.
Prismatic parts often begin with CNC milling; rotational components with CNC turning; cylindrical parts with off-axis features may suit mill-turn; and multi-face or compound-angle geometry may justify 4-axis or 5-axis machining.
- Match tool access and workholding to the part geometry
- Keep critical features connected to a controlled datum strategy
- Plan tolerances, finishing allowance, and inspection before cutting
Send the 3D model and controlled drawing together. Our engineers will review material, quantity, critical dimensions, setup risks, and acceptance requirements before recommending a process and preparing your quotation.
CNC Machining Capabilities
6CNC combines four core processes to manufacture rotational, prismatic, compound, and complex multi-face components.
CNC Turning
Shafts, bushings, sleeves, flanges, threaded parts, and rotational components.
CNC Milling
Housings, brackets, pockets, faces, slots, holes, and precision fixtures.
5-Axis CNC Machining
Complex multi-face geometry, compound angles, and reduced setup count.
Mill-Turn Machining
Cylindrical parts with off-axis features completed in fewer transfers.
Built for Precision, Speed and Reliable Production
Our manufacturing facility combines 3-axis, 4-axis, 5-axis, turning, mill-turn, grinding, and inspection resources to support custom prototypes and small-batch production.
With more than 140 CNC machines and coordinated quality control, our team plans machining, inspection, finishing, and delivery around the requirements that matter to your part.
Materials for Precision CNC Machining
Choose from the complete range of metals, plastics, and composites supported by 6CNC for custom machining projects. Select a material to review its original image, description, grades, and finishing options.
Aluminum
Aluminum offers an excellent balance of strength and weight, making it a preferred choice for mechanical components. Its natural oxide layer provides reliable resistance against corrosion, even in demanding environments.
- Material group
- Metal alloy
- Grades / options
- Aluminum 6061 Aluminum 6063 Aluminum 6082 Aluminum 7075 Aluminum 2024 Aluminum 5052 Aluminum A380
- Compatible finishes
- As machined, bead blasting, anodizing, chromate conversion, powder coating, polishing
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Stainless Steel
6CNC delivers high-precision stainless steel CNC machining for durable, custom-engineered parts. From rapid prototyping to full-scale production, we support demanding applications across global industries with consistent quality and tight tolerances.
- Material group
- Metal alloy
- Grades / options
- Stainless Steel 201 Stainless Steel 301 Stainless Steel 303 Stainless Steel 304 Stainless Steel 316 Stainless Steel 416
- Compatible finishes
- As machined, passivation, polishing, bead blasting, electropolishing, plating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Brass
6CNC provides precision brass CNC machining for custom parts and prototypes, delivering excellent surface finishes, tight tolerances, and efficient production turnaround.
- Material group
- Metal alloy
- Grades / options
- Brass C35600 Brass C36000 Brass C37700 Brass C37000 Brass C37100 Brass C28000 Brass C26000 Brass C24000 Brass C22000
- Compatible finishes
- As machined, polishing, nickel plating, tin plating, protective coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Copper
6CNC delivers high-precision copper CNC machining for custom parts, ensuring outstanding electrical conductivity, dimensional accuracy, and long-term reliability across demanding applications.
- Material group
- Metal alloy
- Grades / options
- Copper C11000 Copper C12000 Copper C12200 Copper C10100
- Compatible finishes
- As machined, polishing, nickel plating, tin plating, protective coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Titanium
6CNC offers precision titanium CNC machining for aerospace, medical, and automotive applications. We manufacture high-accuracy, high-strength components to your exact specifications, even for complex geometries and tight tolerances.
- Material group
- Metal alloy
- Grades / options
- Titanium Grade 2 Titanium Grade 5 (Ti-6Al-4V) Titanium Grade 7 Titanium Grade 9 (Ti-3Al-2.5V) Titanium Grade 23 (Ti-6Al-4V ELI)
- Compatible finishes
- As machined, bead blasting, polishing, anodizing, passivation
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Mild Steel
Mild steel features low carbon content, making it easy to machine, weld, and form while still providing reliable mechanical strength at a cost-effective price point. It’s widely used for structural components, fixtures, and general engineering parts.
- Material group
- Metal alloy
- Grades / options
- Steel S235JR | 1.0038 Steel C45 | 1.0503 Steel S355J2 | 1.0570 Mild Steel 1045 Mild Steel A36 Mild Steel 1018
- Compatible finishes
- As machined, black oxide, zinc plating, nickel plating, powder coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Alloy Steel
6CNC manufactures precision alloy CNC machined parts using advanced machining technologies, ensuring consistent quality, high strength, and reliable performance across demanding applications.
- Material group
- Metal alloy
- Grades / options
- 4140 Steel 4340 Steel 1215 Steel 16MnCr5 Specialty Alloys
- Compatible finishes
- As machined, black oxide, plating, heat treatment, grinding
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Tool Steel
Tool steel is engineered for high hardness, wear resistance, and dimensional stability, making it ideal for molds, dies, cutting tools, and other high-stress applications.
- Material group
- Metal alloy
- Grades / options
- Tool Steel A3 Tool Steel H13 | 1.2344 Tool Steel S7 Tool Steel O1 Tool Steel A2 | 1.2363 Tool Steel D2 | 1.2379
- Compatible finishes
- As machined, heat treatment, grinding, polishing, coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Polycarbonate
Polycarbonate combines impact resistance, low weight, and optional optical clarity. Machining plans should account for heat generation, residual stress, edge quality, workholding marks, and whether transparent surfaces require polishing or protective handling.
- Material group
- Plastic or composite
- Grades / options
- Polycarbonate (PC). Confirm grade, color, transparency, certification, and cosmetic requirements on the drawing or RFQ.
- Compatible finishes
- As machined, polishing, protective handling
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Nylon
Nylon CNC machining allows the creation of precise, durable, and lightweight components suitable for a wide range of industrial applications. 6CNC provides high-quality custom nylon parts, delivering reliable performance and excellent wear resistance.
- Material group
- Plastic or composite
- Grades / options
- Nylon 66
- Compatible finishes
- As machined, tumbling, dyeing where applicable
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
ABS
ABS has good impact strength, dimensional stability, and is easy to finish with painting, plating, or silk screening. Its relatively low cost and versatility make it a top choice across many industries.
- Material group
- Plastic or composite
- Grades / options
- ABS (Standard) Flame Retardant ABS (FR-ABS) ABS+PC Glass Fiber Reinforced ABS
- Compatible finishes
- As machined, painting, plating, silk screening
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Delrin (POM)
Delrin CNC machining produces strong, low-friction, and dimensionally stable parts, ideal for gears, bearings, and precision components. 6CNC manufactures high-accuracy custom Delrin (POM) parts to meet your exact specifications.
- Material group
- Plastic or composite
- Grades / options
- Delrin 150 Delrin 100 (AF)
- Compatible finishes
- As machined, tumbling, polishing
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Polypropylene
Polypropylene CNC Machining Polypropylene CNC machining enables the production of precise, lightweight, and chemical-resistant parts with tight tolerances. 6CNC provides reliable custom components tailored to your specifications for a variety of industrial and consumer applications.
- Material group
- Plastic or composite
- Grades / options
- Confirm the exact grade, color, certification, and condition in the RFQ.
- Compatible finishes
- As machined, deburring, protective handling
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
PTFE / Teflon
PTFE CNC machining enables the production of chemical-resistant, low-friction, and high-performance parts suitable for demanding industrial applications. 6CNC delivers precise custom Teflon components tailored to your specifications.
- Material group
- Plastic or composite
- Grades / options
- Confirm the exact grade, color, certification, and condition in the RFQ.
- Compatible finishes
- As machined, deburring, specialized surface treatment
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Acrylic
Acrylic CNC machining allows for precise cutting and shaping of clear, durable parts with smooth, polished surfaces. 6CNC provides custom acrylic components tailored to your specifications, ideal for displays, lenses, and protective covers.
- Material group
- Plastic or composite
- Grades / options
- Confirm the exact grade, color, certification, and condition in the RFQ.
- Compatible finishes
- As machined, hand polishing, vapor polishing where applicable
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
UHMW-PE
UHMW-PE CNC machining enables the production of highly durable, low-friction, and wear-resistant components. 6CNC manufactures precise custom polyethylene parts ideal for industrial, mechanical, and chemical applications.
- Material group
- Plastic or composite
- Grades / options
- Generic UHMW-PE
- Compatible finishes
- As machined, deburring, protective handling
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Carbon Fiber
Carbon fiber CNC machining produces lightweight, high-strength composite parts with excellent stiffness and dimensional accuracy. 6CNC manufactures custom carbon fiber components tailored to demanding industrial, automotive, and aerospace applications.
- Material group
- Plastic or composite
- Grades / options
- Confirm the exact grade, color, certification, and condition in the RFQ.
- Compatible finishes
- As machined, edge sealing, protective coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
PEEK
PEEK is one of our core high-performance plastic materials. It combines the advantages of metal strength with plastic lightness and corrosion resistance, making it an ideal replacement for metals in extreme environments.
- Material group
- Plastic or composite
- Grades / options
- Virgin PEEK (Unfilled) 30% Glass Fiber Reinforced PEEK (PEEK GF30) 30% Carbon Fiber Reinforced PEEK (PEEK CF30)
- Compatible finishes
- As machined, polishing, specialized cleaning
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
FR4
FR4 is a flame-retardant glass fiber epoxy laminate widely used in electrical and electronic applications. It offers excellent mechanical strength, electrical insulation, and thermal stability, with properties comparable to G-10, making it ideal for circuit boards, insulators, and structural components.
- Material group
- Plastic or composite
- Grades / options
- Confirm the exact grade, color, certification, and condition in the RFQ.
- Compatible finishes
- As machined, deburring, protective coating
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Rubber
Rubber CNC machining enables the production of precise, custom-engineered rubber parts for a wide range of industrial and mechanical applications. 6CNC delivers reliable, high-quality precision solutions tailored to your specifications.
- Material group
- Plastic or composite
- Grades / options
- Hydrolysis Resistant PU EPDM FKM Nitrile Silicone Neoprene
- Compatible finishes
- As machined, trimming, specialized surface treatment
- RFQ requirements
- Confirm grade, condition, certification, critical dimensions, finish, quantity, and acceptance criteria.
Finishing Options for CNC Machining
6CNC coordinates common finishing options according to material compatibility, color, masking, thickness, and processes that can be combined. Final availability depends on geometry, specification, masking, thickness, and acceptance criteria.
| Finish | Applicable materials | Colors | Can be combined with |
|---|---|---|---|
 As Machined | Metals and plastics | Natural material color | Most secondary finishing processes |
 Anodizing | Aluminum | Clear, black, grey, red, blue, gold | Bead blasting, tumbling, masking |
 Black Oxide | Steel, selected stainless steel | Black | Tumbling, polishing, oil or wax seal |
 Powder Coating | Aluminum, steel, stainless steel | Wide range of standard and custom colors | Bead blasting, masking, conversion coating |
 Chromate Conversion | Aluminum and aluminum alloys | Clear, yellow, gold | Painting, powder coating, masking |
 Metal Plating | Aluminum, steel, stainless steel, brass, copper | Depends on nickel, zinc, chrome, tin, gold, or silver | Polishing, bead blasting, masking |
 Polishing | Metals, acrylic, selected plastics | Natural material color | Plating, anodizing, passivation |
| Bead Blasting | Aluminum, steel, stainless steel, brass, titanium | Uniform matte appearance | Anodizing, powder coating, plating |
Additional finishes may be available after technical review. Include the governing specification, thickness range, masking notes, and acceptance criteria with your RFQ.
Engineering Support from Quote to Delivery
Rapid Quote & DFM Feedback
Manufacturability risks and technical assumptions are reviewed before production.
Broad Machining Capability
Milling, turning, mill-turn, 5-axis, grinding, inspection, and coordinated finishing.
Quality Evidence by Requirement
Critical dimensions are matched to suitable measurement methods and records.
Responsive Global Delivery
Production and shipping plans account for complexity, finishing, documentation, and destination.
From CAD Files to Delivered Parts
The 6CNC four-step workflow keeps technical decisions, production, quality control, and delivery aligned.
Upload CAD Files
Send the model, drawing, material, quantity, finish, and delivery requirements.
DFM Review & Quote
We identify risks, confirm assumptions, and provide a clear quotation.
Production & QC
Parts are machined with agreed in-process checks and final inspection.
Global Delivery
Finished parts are packaged and shipped using the agreed delivery method.
From First Prototype to Repeat Orders
Prototype CNC Machining
Validate fit, function, material, assembly, and critical dimensions.
- Start from one part
- Fast engineering feedback
- Design-learning focused
Small-Batch Production
Produce controlled project batches with stable setups and inspection.
- Flexible quantities
- Coordinated finishing
- Production-grade controls
Repeat-Order Support
Protect approved files, setup knowledge, inspection criteria, and records.
- Revision control
- Repeatable inspection
- Delivery scheduling
Typical CNC Machined Part Types
6CNC typically manufactures housings, brackets, shafts, flanges, connectors, fixtures, manifolds, heat sinks, and precision assemblies manufactured from customer-controlled CAD files and drawings.
Parts with multiple datum-related features may require more than one operation or a combined process. We plan setup sequence, workholding, intermediate checks, finishing allowance, and final inspection around the features that control fit and function.
What to Include in a CNC Machining RFQ
Send 6CNC your native or neutral 3D model, controlled 2D drawing, material and condition, quantity, finish specification, critical-feature notes, destination, and required date.
Identify tolerances, datums, GD&T, threads, surface roughness, inspection requirements, and whether dimensions apply before or after finishing. State any FAI, CMM, material-certificate, finish-certificate, packaging, or traceability requirements.
Ready to Manufacture Your Custom Parts?
Send your CAD files and drawings to 6CNC. Our engineering team will review the requirements and return a clear, project-specific quotation.
FAQ About CNC Machining Services
What tolerance can 6CNC achieve?
Tolerance depends on feature size, material, geometry, wall thickness, datum strategy, process, finishing, and inspection. Feature-specific tolerances down to ±0.002 mm may be reviewed for suitable geometries and controlled conditions.
Do you support prototypes and low-volume production?
Yes. Quantity, revision maturity, setup requirements, inspection scope, and expected repeat demand determine the most economical plan.
Can you review my design before machining?
Yes. We can review tool access, workholding, internal radii, deep features, thin walls, tolerance allocation, datum strategy, burr risk, and finishing allowance.
What should I include in an RFQ?
Send the 3D model, controlled 2D drawing, material, quantity, finish, critical-feature notes, inspection requirements, destination, and required date.
What affects CNC machining cost?
Main drivers include material, stock size, setup count, machining time, tool access, tolerances, surface finish, inspection, finishing, quantity, and documentation.