Einhell XS-Case 4-piece diamond tile drill bit set with holesaws in 5, 6, 8 and 10mm. Designed for dry cutting into hard materials such as porcelain stoneware, marble, granite, as well as roof, wall and floor tiles. Features diamond coated tips, thin turbo cutting edge and 10mm high, 0.5mm rim for fast working, reduced dust and long bit life. Internal paraffin-filled cooling gel helps maintain performance without overheating. E 6.3 hex shanks fit standard drill chucks and bit holders in cordless screwdrivers and drills, and prevents slipping in the chuck. For optimum results use at an angle, without impact mode, with high contact pressure in first gear, and at a maximum speed of 400rpm. For Combi Drills 5-10mm Dia. Drill Bits Slow Drilling Speed Suitable for Dry Cutting Supplied in XS-Case For Combi Drills 5-10mm Dia. Drill Bits Slow Drilling Speed Suitable for Dry Cutting Supplied in XS-Case