The 501 cutter is custom made here in the US for Carbide 3D, specifically for PCB engraving.

For the longest life possible, use it with FR1 copper clad rather than FR4.

Specifications:

• .01" Ball tip (.005" radius)

• 60 Degree tip angle

• .125" Shank

• 2 Flutes

• Solid Carbide

* Note: If you have or are purchasing a Shapeoko, please be sure you are purchasing a precision collet and nut to be able to use these cutters.