Dry Diamond Core Drill Bit Set,BRSCHNITT 5pcs 10mm Hole Saw with Triangle Shank for Porcelain Tile Ceramic Stone Granite Marble

SIZE - 5pcs 10mm, Diamond Height 10mm, Total Length 65mm, Triangle Shank Diamond Core Drill Bit WIDE APPLICATIONS - Diamond drill crowns are ideal for dry drilling holes through hard porcelain tile, ceramic, bathroom tile, granite and marble, masonry, concrete, glass and hard plastic. Using water can extend the service life PREMIUM MATERIAL - By using vacuum welding technology, which increases temperature resistance and friction, to better fix the diamond particles to the center steel, improve performance and service life. Made with high quality diamond grain for effortless cutting and durability in hard applications. High quality core steel body helps to be more efficient and durable HIGH PERFORMANCE - Special helical groove design on the drill tip helps to remove chips, the wax inside the drill is helpful for cooling and lubrication MACHINE -- Suitable for any electric drill, hand drill, bench drill. If you use an angle grinder, please install the angle grinder chuck