Black Dry Diamond Drill Bits Set for Granite Ceramic Marble Tile Stone Glass Hard Materials (not for Wood) Round Shank

Diamond Drill Bit Set Diamond drills are special type of accessories designed for drilling very hard but brittle materials. Drill bits are great for drilling holes in porcelain gres marble ceramic tiles and granite. Characteristics: Type: Diamond Drill Bit Working materials: porcelain gres marble ceramic tiles granite stone The cutting segment consists of synthetic diamonds. New generation of ultra-strong synthetic diamonds and high-temperature plasma brazing allow drilling holes in porcelain gres of any hardness. Diamond drills have special cooling wax inside which can cool the bit while drilling. This type of diamond drills has a hex shank. The hex shank eliminates cranking when used in a drill or screwdriver. Diamond drill bits are special type of accessories for drills and screwdrivers for drilling holes in: Place the drill at 45-degree angle. Drill till the hole start to form. Gradually bring the drill up into upright position. Continue to drill by swaying the drill bit in a circle. Drilling speed shouldn’t exceed 800 RPM!