What it is:

Designed specifically for PCBs, the UV solder mask removal tool effortlessly strips away UV solder masks without affecting the copper layer. Its spring-loaded mechanism and internal customized engraving bit ensure precise and clean removal every time.

Specifications:
Shank Diameter: 3.175mm
Tip Diameter: 0.3mm
Total Length: ~ 50mm
Shell Material: Stainless Steel

Materials: 
PCB UV Solder Mask (cured).