Irwin IRWIN® HSS Cobalt Drill Bit 13.0mm OL:151mm WL:101 10502568

This Irwin HSS Cobalt Drill Bit has a 13.0mm diameter, the largest in its range, suited to heavy-duty drilling in stainless steel and other high alloys. It is useful for large clearance holes, pilot holes for bigger operations, and heavy fabrication work. Overall length is 151mm, with a working length of 101mm.

The bit is made from HSS steel containing 5% Cobalt, which improves red hardness (heat resistance) and extends service life, helping it keep its cutting edge at the high temperatures generated when drilling stainless steel and other tough materials.

It features 135° split point grinding for accurate centring from first contact, reducing drilling pressure and bit walk. The industrial ground flute design supports accurate drilling and fast chip removal, while the golden tempered surface finish reflects the heat treatment process used.