
【Masonry Drill Bits】Specifications: 3, 4, 5, 6, 8, 10, 12 mm; Shank Diameter: 6.35mm (1/4") Hex Shank. 【High Quality】Cemented carbide cross drill bit has stable performance, wear-resistant and durable, and not easy to break. 【Efficient Design】The sharp four-edged cross drill head and helical cutter body, reducing resistance and improving efficiency. 【Strong Practicability】Widely used for drilling in concrete/ tile/ block/ marble/ ceramic/ wood/ glass and other materials, please add water to cool when drilling. 【Good Compatibility】Universal 1/4" hex shank drill bit, perfectly suitable for various drilling equipment such as hand or electric drill, cordless drill, bench drill, etc. Specifications Material: Carbide Cutting Diameter: 3/4/5/6/8/10/12mm Drill Weight: 11g/12g/14g/17g/22g/30g/46g Shank Diameter: 6.35mm (Hex Shank) Drill Total Length: 82-123mm Warm Tips: 1.Please add water for cooling when drilling to increase the life of the drill! 2.Please allow 1-3mm errors due to manual