S&R Diamond Drill Bit Set of 4 pcs. 5, 6, 8, 10 mm for Ceramics, Granite, Glass, Porcelain, Marble, Hard Tiles, in Handy Box, Hexagonal Shank

DRILLS CLEAN HOLES IN HARD TILES: S&R diamond-tipped drill bits cut precisely through ceramic, porcelain, glass, granite and marble with temperature-resistant diamond grain for chip-free results PREMIUM DIAMOND GRAIN CONSTRUCTION: Each tip is set with high-quality, wear-resistant industrial diamond grit and a wax-filled core that reduces heat build-up during dry drilling for longer life PRECISE SIZES FOR EVERY JOB: Set includes 5, 6, 8 and 10 mm (0.2-0.4 in) diamond drill bits plus a 6 mm pilot bit for centring, with a 1/4 inch (6.35 mm) hex shank fitting standard chucks IDEAL FOR START-TO-FINISH TILING WORK: Use the pilot bit first to prevent slipping on glazed surfaces, then switch to diamond bits for clean holes in tiles, glass, quartz and terrazzo TRUSTED GERMAN TOOL QUALITY: S&R has developed and quality-checked industrial tools since 1998, backed by responsive premium service and a durable round storage box for safe storage