Irwin HSS Cobalt Drill Bit is perfect for drilling stainless steel and other high alloys. With its 135° split point grinding that ensures perfect centring and reduced drilling pressure. Industrial quality ground flute for high accuracy drilling and fast removal of chips.

Drill bit body manufactured from high quality HSS steel containing 5% Cobalt (Co). The added 5% Cobalt improves the red hardness(heat resistance) of the drill bit and results in significantly extended life. Has an attractive golden tempered surface finish.

Irwin HSS Cobalt Drill Bit

Diameter: 4.1mm.
Working Length: 43mm.
Overall Length: 75mm.