Sealey 170 Piece HSS-Co Drill Bit Set

The Sealey 170 Piece HSS-Co Drill Bit Set is a professional-grade collection of cobalt steel drill bits designed for drilling demanding materials including high carbon steel and stainless steel. These fully ground HSS cobalt drill bits are manufactured to DIN 338 standard, incorporating 5% cobalt content that significantly increases heat hardness and extends operational life when working with harder materials. The 135° split point design provides self-centring accuracy that reduces thrust during