CYCLONE S QZT CORE BITCYCLONE S QZT CORE BIT TOOLS CAN BE USED ON ANGLE GRINDER, AIR POLISHER, DRILL MATERIAL ENGINEERED STONE, GRANITE, QUARTZITE USE WET OR DRY Bond formulated to cut through hard quartzite with a long life span Brazed diamonds on the inside and outside core Inlaid T segments make them durable works wet or dry ITEM # SIZE FITTING USABLE LENGTH MAX RPM CDBQZ114 1 1 4 5 8 11 thread 3 6,500 CDBQZ138 1 3 8 5 8 11 thread 3 6,500 CDBQZ112 1 1 2 5 8 11 thread 3