Diamond hole saw, 68 mm, with center drill, professionally brazed diamond drill bits for tiles, porcelain, glass, marble and ceramics

Professional Diamond Hole Saw: Diamond-coated hole saws with vacuum brazing technology, ideal for drilling ceramic tiles, porcelain, glass, marble, and more. Precise Drilling: The centering guide prevents slippage and allows for easy and precise drilling in tiles. Durable: Thanks to vacuum brazing technology, the diamond adheres better, is more heat and wear resistant, and thus achieves excellent performance and a longer service life. Efficient: Thick and uniform diamond coating for fast and easy cutting. Large side grooves ensure continuous water flow and easy chip removal. Instructions for Use: Hold the drill opening vertically. After drilling the round groove, the centering drill can be removed and drilling can continue. https://m.media-amazon.com/images/I/517c5IjTdWL._SL1200_.jpg