Exquisite Exquisite Dry Diamond Drill Bits Set 10 Pcs Tile Drill Bits Granite Drill Bits

Diamond drill bit set: dry diamond drill bits with 4 styles of diameter size, including 4 pieces of 1/4 inches, 2 pieces of 3/8 inches, 2 pieces of 5/16 inches, and 2 pieces of 1/2 inches; These sufficient drill bits for tile and granite with different diameter specifications will meet your needs to drill holes, which is a practical gift for father, brother, and friendsSturdy and hard drill bits: the granite bits for drill are made of quality material that is safe and reliable, featuring with a strong hardness; The scientific design for rock or stone chips reducing ensures the convenient use, improving the work efficiencyCoated ceramic tile drill bits: the coating on the porcelain tile drill bits improve the drilling speed; The round shank is compatible with most machines, such as hand drills, angle grinders, bench drills and so on; The side grooves can help to not only get rid of debris but also to drill smoothly and quickly; The depth markings are useful for precise projectsWide application: the diamond core bits are suitable for drilling some clean holes in hard materials like ceramic tiles, porcelain floors, granite, glass mirror, marble stone, and masonry bricks, but they are not for woodReliable to use: the stone drill bits are applied with the wax lubricant, which melts and cools the cutting surface during dry drilling; Water can take effect of additional cooling to extend the serving time of drill bitscolor:BlackMaterial:diamondPackage Contents:10 x Dry Diamond Drill Bits SetOnly 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 allowed error is +/- 1-3cm.