Superior Material: The tile drill bit is made of high quality hard Alloy, strong, sharp, durable and wear resistant, not easy to deform and break, the titanium coating on the surface makes the product less sensitive to discoloration. Value Assortment: The package includes 6 ceramic drill bits in 6 different sizes, including 4mm, 5mm, 6mm, 8mm, 10mm, 12mm. These different size drill bits can meet your different drilling needs. Precise drilling: The sharp triangular bit greatly improves the drilling efficiency, and it can also be positioned precisely, and the drill hole is precise without error. Hex shank: The shank diameter is 6.35mm, which is 1/4, suitable for most drills. The hexagonal shank design allows the drill bit to be firmly fixed on the drill without slipping, so you can use it more safely. Wide Application: Fit most drills, such as hand drill, charging drill, electric wrench, etc. Ideal for drilling on tile, ceramic, glass, concrete, marble, wood, plastic and more.