Dormer A225 Series HSS Centre Drill Bit, 1/8" → 5/16" Diameter, 57 mm Overall

Having trouble drilling a centred hole in your material? This drill bit from Dormer hits the spot. Its straight, conical shape makes precise machining a cinch. The 120° drill point creates your hole, and the 60° step angle countersinks it for you. This means you can complete both tasks without stopping to swap bits over.

• Double-ended, so you can take on more cutting tasks with one bit
• High-speed steel material stands up to impact, wear and heat

• Aerospace engineering
• Automotive repair
• Construction sites

This versatile bit can drill through P1 to P4 carbon steel, M1 to M4 stainless steel and K1 to K5 cast iron. It also deals with non-ferrous alloys, including wrought aluminium and copper.

Dormer & RS

High speed steel, right-hand cutting centre drills
Combined drills and countersinks
Double ended
60° Countersink angle
Manufactured to BS328