Milling Service

CNC Machining Process

3Diligent's CNC Milling Service is a cost effective option for precise, functional metal parts made through a multitude of multi-axis solutions.


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CNC Milling Overview

Our CNC milling service transforms basic-shaped stock metals or plastics into more complex geometries with tight tolerances. Using a rapidly turning blade to cut into the raw material, this subtractive manufacturing technology can leverage multi-axis solutions to produce a dynamic range of intricacies and designs.

3Diligent Milling

Process At A Glance

Common Materials

ABS, Acetal (Delrin), Acrylic (PMMA),  Nylon, PEEK, Polycarbonate

Inconel, Titanium, Alloy Steel, Aluminum, Brass, Carbon Steel, Copper, Stainless Steel, Tantalum, Titanium, and Tool Steel

Standard Tolerance


Stock Surface Finish

~ 1.6 μm Ra

Lead Time

As low as 1 week

Maximum Machine Size

2000 mm

Minimum Wall Thickness

~ 0.02"

Woodworking milling


  • Highly Accurate -  Tolerances as low at 0.001"
  • Versatile - Multi-axis cutting allows for highly complex geometries
  • Short-run efficient - Smaller volumes of product often price better
  • High tolerances and fine finishes


  • Significant programming needed - Depending on the part complexity and contours
  • Additional setups - Parts with features on all sides can require multiple "setups" and occasionally custom fixtures to hold the work piece in place as it is cut by the milling tool
  • Internal features cannot be machined - if not visible or can be accessed to the tool

Example Machines

  • Haas
    • 3 Axis (vertical/horizontal)
    • 4 Axis (vertical/horizontal)
    • 5 Axis (vertical/horizontal)