Description: 5\/6\/8mm Hex Shank Carbide Glass Drill Bit Tile Cermic Drill Triangle Drill Specification: Drill bit size: 5mm\/ 0.20", 6mm\/ 0.24", 8mm\/ 0.31" Quantity: 1pcs Features: For drilling tiles, glass and mirrors. It can be used with the ordinary drilling hammer. It must be added coolant when it is being used. Turn to the right speed 400-500rpm when working. Package Included: 1x Glass Drill More Details: