The Irwin masonry drills bits are designed for fast and efficient drilling in brickwork, concrete and breeze block, especially with cordless drills. They drill up to 60% faster than competitive drill bits whilst maintaining the same high durability. The single flute design ensures faster dust removal for increased drilling speed, with the unique, pressed diamond-ground carbide tip allows for aggressive cutting and the carbide tip design also ensures 20% longer life compared to previous Irwin masonry drill bits. The bits are made with a chrome vanadium body with high carbon content which allows more hardening and a stronger bit for maximum rupture strength.Irwin Masonry Drill Bit for Cordless Drills.Specifications:Diameter: 6.0mm.Total length: 330mm.Working Length: 280mm.
The Irwin HSS Pro Drill Bit manufactured from high quality HSS steel. They have precision ground cutting edges for fast drilling and perfect finishing, a ground flute for maximum accuracy and fast chip removal and a universal 118º point shape for drilling a wide selection of materials.The Irwin IRW10502301 HSS Pro Drillbits comes in a bulk pack of 10. Specifications:Drillbit diameter: 7.0mm.Total length: 109mm.Working Length: 69mm.