General description Tile Drill Bit set includes 10 pieces designed for drilling holes in various materials such as glass, ceramic tiles, wall, concrete, iron, brick, marble, and wood. The set features a range of sizes: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, and 12mm, making it versatile for different drilling needs. Technical specifications Sizes included: 3mm, 4mm, 5mm (2 pieces), 6mm (2 pieces), 8mm (2 pieces), 10mm, 12mm Hex shank design for secure fitting Double spiral design for efficient chip removal Usage The Tile Drill Bits are ideal for drilling clean holes in various materials, ensuring efficient and fast operations. The double spiral design helps in quickly removing chips, preventing stagnation and enhancing drilling efficiency.