Ceramic Glass Tile Drill Bit, Effective Universal Drilling Tool"Material: Our glass ceramic tile drill bits are made of YG8 hard alloy. 4 cutting edges cross the spear head with hex shank, so that the drill is tighter and the hole is not easy to slip. High hardness, surface treatment against rust, long service life. Wide Application: This carbide bits is compatible with many types of machines such as ordinary hand drills, bench drills and rechargeable drills and other models, suitable for tiles of ceramic, concrete, tile, brick, wood, plastic, glass, masonry, etc. Add water or coolant when drilling 5 Different Sizes: Includes 5 glass tile drill bit. ceramic in 5 different sizes: 3mm, 4mm, 5mm, 6mm, 8mm. Lightweight and small size, suitable for your different needs: Small incision resistance, stable drilling function, speed. Fast, not breaking the border, the tile drill bit is ideal for drilling fixing holes in bathroom tiles or wall mirrors. We hope you can have a pleasant shopping experience. " Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia