Harder materials require slower running speeds
These Rotary Only ceramic tile drills provide outstanding performance and extended tool life in hard ceramic materials
135º Split Point (crankshaft point)
Running below the optimum speed will cause chipping
12mm Diamond Hex Shank Core Drill Harder materials require slower running12mm 1 4" Hex Shank Diamond Core Drill Brilliant Diamond Vacuum Brazed Core Drill. Vacuum brazed, self lubricating, wax filled diamond core drills. One piece hex shank. Suitable for drilling tiles, ceramics, vitrified products, porcelain, natural and composite engineered stone, monocottura, fibreglass, graphite, carbon fibre, FRP's, and other highly abrasive materials. The wax filled core lubricates the cutting edge allowing dry, water free, drilling.