Sealey HSS Jobber Drill Bit

The 4mm Sealey HSS Jobber Drill Bit is an essential workshop size, ideal for pilot holes, small fixings and general fabrication work. This pack of 10 fully ground bits is manufactured to DIN 338 standards for consistent, reliable performance. The 135° split point is self-centring, which helps reduce thrust, friction and heat generation whilst ensuring easier penetration into the workpiece. Efficient swarf clearance prevents clogging during continuous drilling operations. These bits work excellently with both hand and pillar drills, particularly on high carbon steels and copper. Each pack includes a high-density case for safe, organised storage.