Dormer Spiralbohrer DIN 338 Typ N A777 D.12,3mm HSS-E 5 Stück

High Speed Cobalt (HSCo) provides superior hot hardness when drilling 135 degree split point provides self centering, low thrust and easier penetration Heavy Duty design provided increase strength for drilling difficult materials Bronze finish identifies Cobalt based substrate and reduces built-up-edge For use on machines or hand held applications