Set of four carbide-tipped drill bits (3mm, 5mm, 6mm, 8mm). Designed for drilling into glass, ceramic tiles, and mirrors. Carbide tips provide durability and precision. Best used with low pressure and constant lubrication for clean results. Ideal for DIY and professional tiling projects. The Blue Spot Tools 4 Piece Tile and Glass Drill Set is designed for precision drilling in delicate materials such as glass, ceramic tiles, and mirrors. With four carbide-tipped bits ranging from 3mm to 8mm, this set provides versatility for different drilling needs. The durable carbide tips ensure clean and accurate holes while reducing the risk of cracking or damage.