The Irwin Granite drill bit range has been designed for impact / percussion drilling in very hard materials such as granite, concrete and natural stone.
They can drill 40% more holes than conventional masonry drill bits due to an extra hard, thicker and more robust carbide tip. The rounded cutting edges mean higher durability resulting in 50% more accurately sized holes per drill bit.
The Irwin IRW10501902 Granite drill bit has the following dimensions:
Drillbit diameter: 6.0mm
Total length: 160mm
Working Length: 115mm
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