The engraving bit perfectly engraves FR2 PCBs and is custom made for our MINImill.
The FR2 PCB in the picture is milled on a MINImill with ball screws and the PCB engraving set. The PCB is milled as shown in the picture.
Tip Diameter: 0.2mm with 30°
Engraving Depth: 0.07mm +-0.01mm with automated MINImill Software calibration
Collet Size: 1/8 inch
Made for our MINImill