- 1/4" Hex Shank.
- 90° Three Flute for countersinking/counterboring screw holes.
- Each metal countersink bit is made of high quality M2 HSS material for extended drill bit life and efficiently drills countersinks to help create strong joints between screw and material.
- Good for drilling on wooden planks, fibreboard, particle board, plywood, plastic, aluminium board, PCB board and more.
- For the different sizes and types of screws:
6.3MM [OCB-063] (FOR M3 CSK SCREW)
8.0MM [OCB-083] (FOR M4 CSK SCREW)
10.4MM [OCB-104] (FOR M5 CSK SCREW)
12.4MM [OCB-124] (FOR M6 CSK SCREW)
15.0MM [OCB-150]
16.5MM [OCB-165] (FOR M8 CSK SCREW)
19.0MM [OCB-190] (FOR M10 CSK SCREW)
25.0MM [OCB-250]
