HSS Cobalt Fully Ground Drill Bit Assortment 170pc Ø1-10mm

Fully ground HSS Cobalt drill bits manufactured to DIN 338. 5% Cobalt gives increased heat hardness which helps extend the life of the drill bit. 135° Split point is self-centring which helps to reduce thrust and aids an easier penetration. Efficient clog-free swarf clearance. Suitable for drilling high carbon steel and stainless steel. Supplied in tough composite storage case.