General description AlwaysH Set of 4 diamond drill bits designed for professional use on ceramic tiles, porcelain stoneware, glass, and stone tiles. These high-quality drill bits feature temperature-resistant diamond grit for efficient and clean hole drilling. They are filled with cooling wax and suitable for dry drilling, although using water or coolant is recommended for longer life. Technical specifications Drill diameters: Ø 6 mm, 8 mm, 10 mm, 12 mm Hexagonal shank: 7 mm Total length of the drill: 65-80 mm Installation Use the carbide drill provided to create a starting notch. Place the diamond drill on the start notch at an angle of approximately 45° and drill carefully. Once the notch is deeper, position the machine and diamond drill upright. Drill while slightly circling to ensure dust and debris are removed. Pause regularly to cool the diamond drill and the material. Repeat the drilling and cooling process until the hole is finished. Clean the diamond drill after use and