The Irwin Granite drill bit range has been designed for impact / percussion drilling in very hard materials such as granite, concrete and natural stone. <p><p> <strong> Features & Benefits: </strong> <br> <ul> <li> They can drill 40% more holes than conventional masonry drill bits due to an extra hard, thicker and more robust carbide tip. <br></li> <li> The rounded cutting edges mean higher durability resulting in 50% more accurately sized holes per drill bit. <br></li> <li> 7 Piece Set. <br></li> <li> Contains the following pieces: 4.0, 5.0, 6.0, 7.0, 8.0, 10.0 and 12.0mm <br></li> </ul>

Brand Name	Irwin
Material	Concrete
Manufacturer Model No	IRW10501918