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The Irwin HSS Cobalt Drill Bit is perfect for drilling stainless steel and other high alloys. Its 135° split point grinding ensures perfect centring and reduced drilling pressure. Industrial quality ground flute for high accuracy drilling and fast removal of chips.
The drill bit body is 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.The drill bit has an attractive golden tempered surface finish.