We can process more than 50 kinds of metal and plastic materials, Please refer to the following table for specific available material models.

Maximum Dimensions

Maximum depth that can be milled is 2 in. (50.8mm) from either side of part. For specific milling dimensions by material, see maximum part extents for machining.

	Material	US	Metric
3-axis	Hard metals* Brass	10 in. x 7 in. x 1.75 in.	254mm x 178mm x 44.5mm
3-axis	Copper	10 in. x 7 in. x 2.75 in.	254mm x 178mm x 69.9mm
3-axis	Aluminum Plastic	10 in. x 7 in. x 3.75 in.	254mm x 178mm 95.3mm
3-axis**	ABS Acetal	10 in. x 14 in. x 1.75 in.	254mm x 356mm x 44.5mm
3-axis**	ABS Acetal Nylon	22 in. x 14 in. x 0.75 in.	559mm x 356mm x 19.1mm
3-axis**	Aluminum	22 in. x 14 in. x 3.75 in.	559mm x 356mm x 95.3mm
5-axis	Aluminum Brass Copper Hard metals*	2.6 in. x 2.9 in. x 3.9 in.	66mm x 73mm 99mm

*Hard metals: Titanium (6Al-4V), Stainless Steels (303, 304, 316, 17-4PH), Alloy Steel (4140), Carbon Steel (1018)

**Denotes two-sided machining only

Minimum Dimensions

	US	Metric
Size	0.25 in. x 0.25 in	6.35mm x 6.35mm
Nominal Thickness	0.040 in.	1.02mm

Tolerances

Typically, Protolabs can hold a machining tolerance of +/- 0.005 in. (0.13mm). Part features are recommended to be thicker than 0.020 in. (0.51mm) in all regions and a nominal part thickness above 0.040 in.