Irwin HSS Cobalt Drill Bit

The Irwin 3.2mm HSS Cobalt Drill Bit is specifically sized for precision applications in stainless steel and other high alloys. This diameter is particularly useful for clearance holes for M3 fixings and specialist metalworking applications requiring exact sizing. The 3.2mm size provides the perfect balance between strength and precision. The drill bit body is manufactured from premium HSS steel containing 5% Cobalt, which significantly enhances the red hardness (heat resistance) and results in extended service life. This Cobalt content allows the bit to maintain its cutting edge even under the demanding conditions encountered when drilling stainless steel and high alloy materials. Featuring 135° split point grinding, this bit ensures perfect centring on your mark without the need for centre punching, whilst reducing the drilling pressure required for clean entry. The industrial quality ground flute design facilitates high accuracy drilling and fast chip removal, preventing clogging and maintaining cutting performance. The golden tempered surface finish reflects superior heat treatment for enhanced durability.