Custom CNC Milling Services
Instant quotes on custom milled metal and plastic parts. Quick-turn prototypes and production parts in days.
Free standard shipping on all US orders. International prototype pricing includes tariffs. ISO 9001:2015, ISO 13485, IATF 16949:2016, AS9100D certified. ITAR registered.
High Quality Rapid CNC Milling Service
Artemis 3D integrates seamlessly with thousands of qualified manufacturing partners, including US-based ITAR-registered, AS9100D, ISO 9001, and ISO 13485 certified CNC milling facilities.
Our massive network enables us to accommodate almost any milling requirement. We support 3-axis, 4-axis, 5-axis, and right-angle milling capabilities to help you rapidly create designs from simple straight lines to complex geometric shapes.
Artemis 3D offers instant pricing, on-demand lead times, and design-for-manufacturability feedback on custom CNC-milled parts, regardless of industry. Get your instant quote today. The price of milled prototypes includes tariffs and shipping for standard parcels.
CNC Machining Materials
Choose from over 50 metal and plastic materials for your custom CNC milled parts
Aluminum
Aluminum is a highly versatile CNC machining material known for its excellent strength-to-weight ratio, corrosion resistance, and overall durability. It machines exceptionally well, allowing for high speeds, tight tolerances, and cost-efficient production.
Aluminum 2024
High strength, fatigue resistant
Aluminum 6061
Versatile, corrosion resistant
Aluminum 6063
Good surface finish, extruded
Aluminum 7050
Aerospace, stress-resistant
Aluminum 7075-T6
High strength, aircraft grade
Aluminum MIC-6
Cast plate, dimensionally stable
Brass / Bronze / Copper
Brass, bronze, and copper are known for their excellent machinability, wear resistance, and conductivity. These materials produce smooth finishes, retain fine details, and perform well in applications requiring durability or electrical and thermal efficiency.
Copper 101
High purity, excellent conductivity
Copper 260 (Brass)
Good machinability, decorative
Copper C110
High conductivity, electrical
Copper C932 (Bronze)
Bearing applications, wear resistant
Copper C360 (Brass)
Free-machining brass
Garolite
Garolite is a durable composite material offering high strength, excellent electrical insulation, and strong resistance to heat and wear. It machines cleanly and maintains dimensional stability, making it ideal for precision parts where reliability and performance are essential.
Garolite G10 (FR4)
Flame retardant, electrical grade
Garolite G10
High strength, electrical insulator
Garolite G11 (FR5)
High temp, flame retardant
Plastics
Plastics offer exceptional versatility in CNC machining, providing lightweight strength, chemical resistance, and excellent electrical and thermal insulation. Options range from general-purpose to high-performance engineering plastics, enabling cost-effective solutions across a wide range of design requirements.
ABS
Impact resistant, lightweight
Acrylic
Clear, optical clarity
Acetal (POM)
Low friction, dimensionally stable
Delrin 100 (AF)
AF-filled, low friction
Delrin 150
Standard grade acetal
HDPE
Chemical resistant, food safe
Nylon 6/6
Strong, wear resistant
Polycarbonate
Impact resistant, clear
PEEK
High performance, heat resistant
USP Class VI TECAPEEK
Medical grade PEEK
PEEK GF30
Glass-filled PEEK, stiff
Polypropylene
Chemical resistant, flexible
PVC
Rigid, chemical resistant
UHMW PE
Excellent wear resistance
ULTEM 1000
High strength, heat resistant
ULTEM 2300
Glass-filled, dimensional stability
Stainless Steel
Stainless steels are valued for their exceptional strength, corrosion resistance, and long-term durability. They deliver reliable performance in demanding environments while maintaining precision.
Nitronic 60
Wear & galling resistant
Stainless Steel 15-5
PH, high strength
Stainless Steel 17-4
PH, corrosion resistant
Stainless Steel 303
Free machining
Stainless Steel 304
General purpose, corrosion resistant
Stainless Steel 316
Marine grade
Stainless Steel 410
Heat treatable
Stainless Steel 416
Free machining, magnetic
Stainless Steel 420
Hardened, corrosion resistant
Stainless Steel 440C
High hardness, knife grade
Steel
Carbon and tool steels are trusted for their strength, toughness, and versatility. They can be machined to precise tolerances and heat-treated for enhanced hardness and wear resistance.
Steel 1018
Low carbon, weldable
Steel 1215
Free machining
Steel 4130
Chrome-moly, aircraft
Steel 4140
High strength, heat treatable
Steel 4340
High strength, aerospace
Steel A36
Structural, weldable
Tool Steel A2
Air hardening
Tool Steel O1
Oil hardening
Titanium
Titanium alloys are prized for their exceptional strength-to-weight ratio, corrosion resistance, and biocompatibility. Ideal for high-performance components in aerospace, medical, automotive, and other demanding applications.
Titanium Grade 2
Commercially pure, corrosion resistant
Titanium Grade 5
Ti-6Al-4V, aerospace standard
Custom Sourced Materials
If you do not see the material you are looking for, please choose "Other" under the material drop-down on the quoting page and submit for an expert engineering review once you have specified features, tolerances, inspection needs, and quantities required.
Available Finishes
Enhance the appearance and performance of your CNC milled parts
As-Milled
The finishing option with the quickest turnaround. Parts are left with visible tool marks and are deburred to remove sharp edges, unless otherwise specified. Standard surface roughness of 125 μin Ra.
Bead Blast
The part is cleaned, deburred, and placed in an abrasive blaster where surface deposits are removed by applying fine glass beads at high pressure. Bead blasted parts will have a matte or satin-like appearance.
Anodized (Type II or Type III)
Type II creates a corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, and gold are most common. Type III (hardcoat) is thicker and creates a wear-resistant layer.
Chemical Finishes
Treatments like chromate conversion, passivation, black oxide, and electropolishing improve corrosion resistance, surface cleanliness, appearance, and in some cases, lubricity or electrical performance.
Metal Platings
Electroless nickel, gold, silver, and zinc platings enhance corrosion resistance, conductivity, wear resistance, and aesthetic appeal with durable, uniform protection.
Powder Coat & Paint
Provides a durable, protective layer that resists corrosion, wear, and UV damage. Offers a uniform, attractive appearance while preserving precision and performance.
Applications of CNC Milling
Rapid Tooling
Because CNC can be applied to virtually any material, it is perfect for rapid tooling, creating fixtures or molds from durable metals and plastics.
Rapid Prototyping
The range of materials available, low CNC machining costs per unit, and speed of production makes CNC a great option for prototyping.
End-Use Production
High-quality finish, vast material options and precise tolerances have made CNC a favorable technology for end-use production parts.
Advantages of CNC Milling
Rapid Turnaround
Using the latest CNC machining capabilities, Artemis 3D produces highly accurate, quick turn parts in as fast as 1 day.
High Precision Tolerances
Our CNC milling capabilities offer high-precision tolerances, including sub ±.001" tolerances.
Scalability
CNC machining processes are perfect for prototype and production parts. Scale from initial prototypes to 100,000 parts or more.
Material Selection
Choose from over 50 metal and plastic materials. CNC Machines offer a wide variety of certified materials.
CNC Milling Tolerances & Standards
Precision machining with tight tolerances for demanding applications
| Description | General Tolerance or Standard |
|---|---|
| Maximum Part Size | Milled parts up to 80" x 48" x 24" (2,032 x 1,219 x 610 mm) |
| Distance Dimensions | For features of size (Length, width, height, diameter) and location: ±.005" |
| Orientation and Form | ±.005" and angularity of 1/2 degree for parts 0-12" |
| Standard Tolerances | Metals: ±.005" (±0.127 mm) per ISO 2768. Plastics: ±0.010" |
| Precision Tolerances | Sub ±.001" tolerances available per drawing specifications and GD&T callouts |
| Minimum Feature Size | 0.020" (0.50 mm). May vary depending on geometry and material |
| Threads and Tapped Holes | Any standard thread size. Custom threads available with manual quote review |
| Surface Finish | Standard 125 μin Ra or better. Additional finishing options available |
| Edge Condition | Sharp edges broken and deburred by default |
Please check out Artemis 3D's Manufacturing Standards for more information on tolerances per process.
What is CNC Milling?
The Basics Of CNC Mills
CNC mills are automated cutting machines using a rotating spindle-head to cut away unwanted material. CNC milling machines come in a variety of sizes and different axis configurations. This manufacturing process is mainly utilized to cut harder metals but can work with workpiece materials ranging from plastic and aluminum to stainless steel and titanium.
How CNC Milling Works
CNC mills excel at profile cutting harder materials. Like all CNC machines, a CNC mill is controlled with G-Code created through CAM software. The G-Code instructs the machine where to move the tool head, how fast to spin the tool, how deep to cut, how to move the workpiece, and other factors relating to speed, feed rate, and coordination. The G-Code complexity depends on how many axes the milling machine has.
Types of CNC Mills
3-Axis
The most widely used type of CNC milling machine. The full use of the X, Y, and Z directions makes a 3 Axis CNC mill useful for a wide variety of work.
4-Axis
This type of mill allows the machine to rotate on a vertical axis, moving the workpiece to introduce more continuous machining.
5-Axis
These machines have three traditional axes plus two additional rotary axes. Able to machine 5 sides of a workpiece in one setup without removing the workpiece.
Other Benefits Of CNC Mill Machining Processes
CNC milling machines are built for precise manufacturing and repeatability which makes them perfect for rapid prototyping and low-to-high volume production runs. CNC mills can also work with a variety of materials from basic aluminum and plastics to more exotic ones like titanium — making them the ideal machine for almost any job.
Why Choose Artemis 3D for Custom Milling?
Endless Options
Choose from millions of possible combinations of materials, finishes, tolerances, markings, and certifications for your order.
Easy to Use
Get your parts delivered right to your door without the hassle of sourcing, project management, logistics, or shipping.
Vetted Network
We are ISO 9001:2015, ISO 13485, IATF 16949:2016, and AS9100D certified. Only the top CNC machine shops make it through our qualification process.
Industries We Serve
CNC milling is trusted across industries for precision components
Ready to Get Started on Your CNC Milling Quote?
Upload your CAD files for instant pricing on custom milled parts. Free shipping available for domestic CNC machining orders.
Start Your CNC Milling Project Today
Upload your CAD files and get instant pricing on precision milled parts in over 50 metals and plastics.