Utoolmart Masonry Drill Bit Review

【Dimension】- The masonry drill bits size is 6mm / 0.24-inch, the total length is 100mm / 3.94-inch and the bit working length is 50mm / 1.96-inch. 【Materials】 Made of high-quality alloy material, with heat treatment. It has a variety of properties such as durability, rust resistance, and new scientific spiral chip removal space design to speed up chip removal and improve work. Efficiency saves time and effort. 【Special Design】- U-type slot design, provides low resistance, easy to position, resulting in smoother drilling and easier chip removal; 3-Flats Shank allows drill bit to be easily plugged without slipping. When drilling hard material (glass, porcelain floor tile, marble or granite), please use water for lubrication. 【Application】- This multifunctional ceramic drill bit can be used for ceramic tiles, glass, brick walls, walls, marbles, etc. 【Note】- When drilling hard materials (glass, porcelain floor tile, marble or granite), please use water for lubrication and preserve from over heating. Please do NOT use impact mode of drill or hammers.