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CNC Facility

Online CNC Machining Service

Online CNC machining service that meets your most stringent requirements. Quotes in seconds, custom parts delivered in days.

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CNC milling, CNC turningSurface finishingLead times from 5 days

Why engineers use 3D Hubs for CNC machining

Instant quoting & DfM feedback
Build and edit your quote online. Review your parts for manufacturability and assess the cost of different materials, processes and lead times for your project in real time.
Readily available capacity
Benefit from our network of 250 manufacturing partners to access instantly available capacity. Our manufacturing partners are both local and overseas.
Quality & reliability
Dedicated 3D Hubs team to ensure your parts consistently meet your quality expectations. We also offer phone, email and chat support for any concerns or questions you may have.

Upload your parts to get a free quote

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Available CNC machining services

Our network of Manufacturing Partners gives you easy access to diverse machining capabilities to serve all your manufacturing needs.

Name Description
CNC Milling service CNC milling is a subtractive manufacturing process that rapidly removes material from metal or plastic blocks to produce precision parts with tight tolerances.
Learn more about our milling capabilities
CNC Turning service CNC turning produces parts with cylindrical features by removing material from metal or plastic rods using cutters, center drills or live tooling.
Learn more about our turning capabilities
5-axis CNC machining 5-axis CNC machines can produce parts with complex geometries and increase productivity by minimizing the number of machine setups.
Learn more about our 5-axis capabilities

Available materials for CNC machining

Here is a list of our standard CNC machining materials available through our online platform.

Plastics Aluminum Stainless steel Other steels Other metal
ABS 6061-T6 303 Mild steel 1018 Brass C360
Nylon 6 6082 304 Mild steel 1045 Copper C101
POM (Delrin) 7075 316 Mild steel A36 Copper C110
Polycarbonate 5083 2205 Duplex Alloy steel 4140 Titanium Grade 2
PVC   17-4 Alloy steel 4340  
HDPE   420 Tool steel O1  
PTFE (Teflon)     Tool Steel A2  
PEEK     Tool Steel D2  
G-10     Tool Steel S7  
Nylon 30%GF        

More materials and heat treatments are available upon request

Available surface finishes for CNC machining

Surface finishes are applied after machining and can change the appearance, surface roughness, hardness and chemical resistance of the produced parts.

  Name Description
cnc-surface finish-as-machined-1 As Machined (standard) ~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part.
cnc-surface-smoothed Smoothed Parts are machined at a lower feed rate in order to achieve a surface roughness of ~62.5 RA µin (1.6 RA µm). Surface roughness can be decreased up to ~32 RA µin (0.8RAµm) upon request.
cnc-surface finish-bead blasted-1 Bead Blasted Bead blasting adds a uniform matte or satin surface finish on a machined part, removing all tool marks. Mainly used for aesthetic purposes.
cnc-surface finish-anodized-1 Anodized Clear or Color (type II) Anodizing adds a thin, hard, non-conductive ceramic coating on the surface of aluminum parts, increasing their corrosion and wear resistance. Available in a variety of colors.
cnc-surface finish-anodized-2 Anodized Hardcoat (type III) Hardcoat anodizing produces a thicker ceramic coating providing excellent corrosion and wear resistance. for functional applications.
cnc-surface finish-powder coating-3 Powder Coated Powder coating adds a thin layer of strong, wear and corrosion resistant protective polymer paint on the surface of a part. Available in a large range of colors.
electropolishing (temporary) Electropolished Electropolishing is an electrochemical process used to polish, passivate and deburr metal parts. It is useful to reduce surface surface roughness.
Black oxide (stock photo) Black oxide Black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.
brushed finish Brushing Brushing is produced by polishing the metal with grit resulting in a unidirectional satin finish.

Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.

Dorien Sarsby, UK Strategic Account Manager Dorien Sarsby UK Strategic Account Manager
Jennifer Kaari, US Strategic Account Manager Jennifer Kaari US Strategic Account Manager
David Nguyen, EMEA Sales Engineer David Nguyen EMEA Sales Engineer

For businesses of all sizes

Get in touch with our sales representatives to set up your company account and access these services:

  • Non-disclosure agreements
  • Additional services: urethane casting and part marking
  • Design verification program (learn more)
  • Dedicated account manager
  • ISO 9001, material certifications, test reports and full dimensional reports

Contact Sales or call us directly on


The table below summarizes the standard tolerances of the parts produced by certified 3D Hubs Manufacturing Partners. Tolerances up to .0008” (0.020mm) are available upon request.

Part size / Dimension Tolerance Angularity
< 12’’ (300 mm) ± .005’’ (0.125 mm) ± 0.5°
< 24’’ (600 mm) ± .010’’ (0.250 mm) ± 1.0°
< 36’’ (900 mm) ± 1/64’’ (0.400 mm) ± 1.0°

Tightest tolerance: ±.0008’’ (0.020 mm) Tighter tolerances are examined on a case by case basis with your technical drawings.

Quality assurance

  • ISO9001 certified Manufacturing Partners on request
  • Inspection report included in every order. Full dimensional inspection reports on request
  • Material certifications and test reports available on request
  • Batch inspection in concurrence with ISO2859
  • Strict NDA agreements with all Manufacturing Partners
  • Manufacturing Partner performance tracking on lead time and quality

Our CNC machining service has been rated 4.8/5 star_rate

Over 3,678 customers satisfied with our service.

“The service was done at a good quality with a reasonable price. Fast delivery as expected”

Jean-Michel Hubert, ST GERMAIN EN LAYE
Aluminum 6061-T6, CNC machining

“fast, great quality, competitive instant pricing”

Jamison Go, Burlington
Aluminum 7075, CNC machining

“Quick turn around - Quality precision - Above my expectations”

Chris Szente, Oxford
Mild steel 1018, CNC machining

“The part was flawless.”

Kris Steward, Cordova
Aluminum 6061-T6, CNC machining

“Parts were fabricated to spec and delivered on time and on budget”

David Brownell, Medfield
Stainless steel 304, CNC machining

“Fantastic machine finish. One of the best anodize finishes I've gotten from a prototype shop. Tolerances were held perfect.”

David Morar, Canton
Aluminum 6061-T6, CNC machining

“Looks very nice, all measurements are correct”

Fredrik Paulsson, Sundsvall
Aluminum 7075, CNC machining

“Exceptionally efficient and well organised”

Greg Pickers, Chandler
Aluminum 6061-T6, CNC machining

“After fighting for years with local providers, 3DHubs has been my salvation. Parts are of high quality.”

Ivan Perino, Valencia
Aluminum 6061-T6, CNC machining

“I like how they were able to quickly sourced my parts at good rate and followed up with manfacture to ensure quality of the parts.”

Majed Affan, Calgary
Aluminum 6061-T6, CNC machining

“we are very impressed and working on an order for 100 more pieces in Sept. thank you!!”

James Ellenwood, RAPID CITY
Aluminum 6061-T6, CNC machining

“Awesome quality awesome speed time frame”

Jason Millard, RAPID CITY
Aluminum 6082, CNC machining

“Good and fast communication. Prompt quotion. Parts (milled) were made and delivered in 10 days after ordering. Excellent Quality.”

Pieter Visser, Lith
Aluminum 6061-T6, CNC machining

“Fit, finish and function are perfect.”

Dennis Brady, Waxahachie
Aluminum 6061-T6, CNC machining

“Parts arrived quickly (well packaged), dimensions and tolerances perfect, finishes excellent.”

Marko Mojsin, Mascot
Delrin, CNC machining

“Parts came in as expected, on time, and you can't beat the price. The quick quote is awesome and the customer service is great. I would recommend this service, and will also use it again.”

Michael Keenan, Yaphank
Stainless steel 304, CNC machining

“Exactly what was ordered. Great finish on the product aswell.”

Thomas Egan, Galway
Aluminum 6061-T6, CNC machining

“Beautifully produced double sided spline shaft.”

Kyle Janny, Lake Mills
Aluminum 6061-T6, CNC machining

“Quick and to specifications with a vast choice of material to choose from and many file formats supported.”

Julien Dumas-Pilhou, Geneva
Aluminum 7075, CNC machining

Show more reviews

The Essential CNC Cost Reduction Checklist

When it comes to CNC machining, even small design decisions can have a significant impact on the price.

Learn how to cut costs in half by optimizing your design with 15 practical design tips!

Download Free CNC Checklist

The essential CNC cost reduction checklist

Rapid CNC prototyping & Precision CNC service

Upload your designs and get instant feedback on manufacturability, suggesting the best process based on your parts design.

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