Feature: *Centering point - for a precise drip and a good guide *Sharp edges - for multi-purpose drlling on drywall, bricks, tiles, wood, aluminum and sheet metal *2 flute design - for better drilling dust extraction *Can be installed in the hand drill, electric drill, bench drill to provide smooth and accurate drilling in ceramic tile, glass, brick wall, wood and etc. *Suitable for solid wood board, thin iron board, PVC, glass, ceramic tile, marble, etc. *Add water for a longer service life. Specification: Product name:Extended Tile Drill Color: Black Material: Carbide Diameter: 6mm, 8mm, 10mm Length: (Approx.) 150mm/180mm/203mm Shank:Triangular handle Suitable for: solid wood board, thin iron board, PVC, glass, ceramic tile, marble, etc. Quantity: 3pcs Package Included: 3 Drill Bits Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.