10 PACK 4mm Fully Ground HSS Cobalt Drill Bit - Long Life Clog Free Drill Bit

10 PACK 4mm Fully Ground HSS Cobalt Drill BitLong Life Clog Free Drill BitFully ground HSS Cobalt drill bit 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 and stainless steel. High-density case for safe storageFeatures: Fully ground HSS Cobalt drill bit manufactured to DIN 338. ...