91172 Boron (Spotmatic) Drill 8mm-46mm
Tungsten carbide 3 point spot buster drill bit with multi-layering coating for super strength and boron steel.
- Size: 8mm x 46mm long.
- Boron Steel.
- 3 point.
- For use with Spotmatic, please see Power-TEC Part No. 91150.
- 44mm version also available, please see Part No. 91937.