Gotrays - s&r Diamond Drill Bits for Ceramic Tiles, Porcelain Stoneware, Tiles, Glass, Stone. Set of 4 Professional Diamond Drill Bits

General description Professional diamond drill bits designed for drilling clean holes in hard materials such as porcelain, glass, ceramic tiles, granite, marble, quartz, limestone, fiberglass, terrazzo, masonry, and sandstone. This set includes 4 high-quality drill bits that are filled with cooling wax, making them suitable for dry drilling. Technical specifications Set includes 4 drill bits with diameters: 6 mm, 8 mm, 10 mm, and 12 mm High-temperature resistant diamond grit for efficient drilling Cooling wax filled for dry drilling Installation Install the punch bit on a hand drill for use Usage Drill at a maximum angle of 30° initially, then straighten the drill bit to complete the hole Regularly wet the bit to extend its life, although it can be used dry Maintain a high speed while drilling and use a slight rotating motion for optimal results Other information