High Quality Diamond Drill Bits: Tile drill bits with sharp and extremely hard diamonds, the diamond drill bit ensures professional, clean and fast drilling. High quality diamond drill bits are abrasion resistant, durable and long lasting, fast cutting speed. Waterless Drilling: Diamond drill bits for efficient and clean drilling. Filled with cooling wax, is used to cool and lubricate the drill, so you can drill holes without adding water, suitable for dry drilling. Wide Applications: Perfect for easily drilling holes in glass, marble, tiles, blocks, glasses, fiberglass, slate, granite, ceramic, hard floor tiles, stone slabs, hard tiles. Works with all electric drills and angle grinders. Stable and Durable: Diamond drill bits for dry drilling, stable drilling. In addition, it has a long service life due to high-quality and temperature-resistant diamonds. Vacuum brazing is the most efficient and precise way to manufacture diamond tools. It allows us to improve the removal rate and a