7pc Diamond Core Drill Bits Set, Tile Drill bits for Ceramic Porcelain Marble Granite Stone Glass Brick, Integrated Coolant for Fast Dry Drilling, Round Shank, Size 3/16" 1/4" 5/16" 3/8" 1/2" - DKIBBITH, VVT-072

• More Tile Holes: This Diamond drill bit set includes 7-Pack of dry diamond drill bits in assorted Size 2 pieces of 3/16" (5mm), 2 pieces of 1/4" (6mm), 1 piece of 5/16" (8mm), 1 piece of 3/8" (10mm) and 1 piece of 1/2" (12mm), to fulfill increased tile hole demands when you renovate your bathroom or tile floor Dry Drilling Efficiency: Our diamond drill bits feature 0.35” diamond tip and an innovative hollow design with integrated wax lubricant to cool the bit, preventing diamond loss and promoting fast and efficient drilling, total length 2.55”. Please allow the bit to cool after each hole. Compatibility and Debris Removal: Diamond drill bits designed with a round shank that is compatible with most popular electric drills. The special side flutes are engineered to remove debris quickly, ensuring smooth drilling. Depth marks provide guidance for precise hole depths. Easy to Use: 1. Start an angle about 45 degrees to the surface. 2. Slowly bring the drill up-right position and move the tool in the circular motion. 3. Do not apply pressure, let the drill bit do the work. Clean and Precise Holes: Equipped with high technology Diamond coating, our tile drill bit set is capable of drilling clean holes in a wide range of materials, perfect for ceramic, porcelain, granite, marble, quartz, and stone tiles. If you have any questions, please don't hesitate to contact us.