6/8/10/12mm Hexagonal Chuck Vacuum Brazed Diamond Dry Drill Bits Hole Saw for Granite Marble Tile Ceramic Glass Power ToolsFeature:Wax inside for cooling, dry drilling without water. Very high performance, multifunctional drilling. Excellent material, sturdy and durableApplication: for drilling granite and marble, masonry, concrete, tile/ceramic, glass, hard plastic, etc. Specification:Hole Diameter: 6/8/10/12mm Material: Alloy + Emery BoardHandle: Hexagonal HandleShank Diameter: 7mmLength Is: 65/65/80/80mmNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-3mm measuring deviation due to manual measurement. 1 X Drill Bit