CYCLONE DRY/WET CORE BITCYCLONE DRY WET CORE BIT TOOLS CAN BE USED ON Angle grinder, drill, air polisher, MATERIAL Engineered stone, granite, porcelain, ultra compact USE Wet or dry Our fastest core bit will drill most granite in under 30 seconds with water Largest inventory available from 1 to 6 A better alternative to thin wall core bits Vacuum brazed side protection 5 8 11 thread ITEM # SIZE FITTING USABLE LENGTH MAX RPMS CDBS100 1 5 8 11 thread 3 6,500 CDBS118 1 1 8 5 8