General description High-quality tungsten carbide masonry drill bits set, featuring reinforced heads for enhanced durability. These bits are designed to resist breaking and bending, with a rust-resistant surface treatment for a long lifespan. Technical specifications Material: Tungsten carbide Sizes: 6 mm, 8 mm, 10 mm, 12 mm Design: Triangular shank for better grip Speed: 85% faster than standard bits Usage Ideal for drilling into a variety of materials including metal, glass, ceramic tiles, wood, stone, concrete, and bricks. For drilling hard materials, it is recommended to use water for lubrication.