Description of 🥊 Ultimate Multifunctional Punching Set - Canitu, 12-Piece
【Multifunctional Masonry Drill Bits】Concrete drill bit suitable for masonry, tile, glass, wood, plastic, ceramic, brick, concrete, stucco, brick, cinder block, thin steel, laminate flooring, garden pot, marble, mirrors, windows, etc. Please try to keep the drill vertical and use WATER or COOLANT for lubrication when drilling. 【Durable Industrial Strength Carbide Tips】Masonry drill bits are made of high-quality tungsten carbide. Concrete drill bit has a variety of properties such as durability, rust resistance and excellent abrasion resistance, remain sharp for a long time that make the drilling much more easier. 【Anti-slip Triangle Shank Drill Bits】Anti-skid triangle handle head design is firm in operation. Special U groove drill design speeds up chip removal, improves work efficiency and saves time and effort. A spear-pointed tip design gives this product greater precision and piercing power. 【7 Different Sizes Masonry Drill Bits Set】The drill bits set include 3mm(1/8"-1 pcs), 4 mm (1/6"-1 pcs), 5mm(1/5"-1 pcs), 6mm(1/4"-3 pcs), 8mm(5/16"-3 pcs), 10mm(3/8"-2 pcs), 12mm(1/2"-1 pcs). Carbide glass tile drill bits fits most cordless, general-purpose, bench, electric and hand drill. 【Easy to Operate】The drill bit can be installed and used. The drilling speed of drill bit should be slow, especially in the beginning of drilling. Recommended speed of drill set: 100-800 / MIN, the larger the diameter, the slower the speed requirement.