General description The Multi-Material Drill Bit Set is designed for drilling through a variety of materials including ceramic, tile, concrete, brick, glass, plastic, and wood. This set is perfect for creating fixing holes in bathroom tiles or mirrors, and it effectively drills through the material behind them. Technical specifications Durable tungsten carbide tip for enhanced penetration 5 drill bits in total Sizes included: 2 x 6 mm (1/4 inch), 1 x 8 mm (5/16 inch), 1 x 10 mm (3/8 inch), 1 x 12 mm (1/2 inch) Usage Ideal for fast drilling with effective dust removal Drill bits feature flats for secure holding in the drill When drilling glass, porcelain, marble, or granite tiles, use water for lubrication Other information