Standard carbide. Standard lifetime/wear resistance. 2-cutter. Standard. 2-flute U-shape. Standard lifetime/ Good dust removal. Suitable for drilling holes in masonry, limestone, natural and artificial stone. Can be used with all impact drills. Tungsten carbide tipped hammer drill bit, manufactured to ISO 5468. Drill bit colour: silver-grey. Pack of 1. 5 x 50 x 85 mm, d 4 mm.