Dormer A110 Series HSS Twist Drill Bit, 4.2mm Diameter, 119 mm Overall

Hunting for a tool that helps you bore holes in hard-to-reach areas? This drill bit from Dormer has got your back. As it's made of rugged HSS that stands up to impact and wear, it's a great shout if you're working with tough materials such as steel or cast iron. A 118° drill point means it's a cinch to regrind if the edge becomes worn through heavy use, giving you long-lasting performance.

• Suitable for hand or machine jobs for versatility
• Compact diameter of 4.2mm for precise drilling

• Construction sites
• Machine maintenance
• Automotive manufacturing

This drill bit bores to a depth of six times its 4.2mm diameter without becoming clogged with waste material, so you can create deep holes in a jiffy.

BS 328; DIN 340 RN; ISO 494

HSS Long & Extra Long Series

These HSS straight shank, right hand cutting long series twist drills are capable of drilling up to 10x the drill diameter before the flute needs to be cleared, to avoid fouling. They are made to BS328/DIN340 RN and ISO standards, and are recommended for use with steel and cast iron.