Detail 24 pcs. Masonry Drill Bits Set 3Mm to 12Mm Carbide Tips for Wall, Brick, Cement, Concrete, Glass, Wood)High quality multifunctional drill bit set made of tungsten carbide, will not rust, prevent the drill bit from breaking, has a longer service life than medium steel drill bits, and is durable. The superior drill bit makes drilling easier, less labor-intensive, and works with minimal pressure. The spiral drain groove process design can speed up chip removal, effectively prevent chip accumulation, and improve work efficiency. The spear tip is designed with a durable hard alloy tip that easily penetrates through a variety of materials. The custom triangular tip prevents slipping during punching and is easy to install. Normal hammer drills, electric drills, and drill bits can be installed and used. Different sizes for different purposes to meet the daily needs of your work. The masonry drill easily penetrates through various materials such as tile, glass, hard plastics, cement concrete, brick walls, wood, and reduces cracking. Materials with higher hardness are better for use with water. Color: BlueMaterial: AlloyPackage Contents:4*3mm Drill Bits4*4mm Drill Bits 4*5mm4*6mm Drill Bits 2*7mm Drill Bits 2*8mm Drill Bits 2*10mm Drill Bits 2*12mm Drill Bits Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.