5 Pcs Dry Drill Bit M10 Thread 8mm Vacuum Brazed Hole Saw for Ceramic Tile Marble Stone

Effortless Dry Drilling: The drill bit features built in cooling wax, allowing for effective dry drilling without water. The higher the rotation speed, the more holes can be drilled without adding water.

Construction: Made from premium , filled with sand, the length is doubled, the is brazed and electroplated, the drill bit has high wear proofing, ensuring durability and fast drilling speed. Use : Tilt the drill bit gently at a 45 degree angle, avoid slipping, maintain high speed rotation, form a half moon shaped positioning , then slowly straighten the drill bit, shaking while drilling to discharge debris quicker and improve drilling speed. Item Type: Dry Drill Bit Material: Size: Approx. 8mm Celsius 0.31in