Tile Drill Bits Set of 10 Drill Bits for Ceramic Granite Porcelain Tile Stoneware Masonry Marble

Widely Used - Tungsten carbide triangle drill bit, mainly used to ensure accurate positioning for drill bits Wide Applications drill bits are perfect for drilling dry holes in hard porcelain tiles, ceramics, bathroom tiles, granite and marble, masonry and hard plastic with ease. Using water could extend the service life HIGH PERFORMANCE - Special spiral groove design on top of drill bit helps chip evacuation, wax in drill bit is helpful for cooling and lubrication MACHINE - Suitable for any electric drill, hand drill, bench drill, if you use angle grinder, please install the angle grinder chuck, recommended rotation speed: 2000-6000. The faster the better(can't be used on machines less than 2000rpm).