General description This set includes 4 premium quality diamond drill bits designed for drilling tiles, ceramics, porcelain, glass, and stone. Made from stainless steel and coated with diamond particles, these bits provide durability and efficiency, making them ideal for precision work. Technical specifications Material: Stainless steel with diamond coating Sizes: 6 mm, 8 mm, 10 mm, 12 mm Diamond coating depth: Up to 10 mm Shank size: 6 mm Usage Do not use in hammer mode. Install only on a corded drill for sufficient power. Recommended for drilling tile only; not suitable for the material behind the tile. For horizontal drilling, apply light pressure; for vertical drilling, the weight of the machine will provide sufficient pressure. Drilling instructions: 1) Position the drill at a 45-degree angle. 2) Drill until the hole begins to form. 3) Bring the drill to a vertical position. 4) Continue drilling and swing the machine along a circle. Other information Package includes: 4 Vacuum