The RTC Hole Shot is a porcelain core bit designed to be used with minimal to no water on a grinder with a 5/8″-11 Threaded spindle.  These bits offer the ability to cut dry for up to 40 holes per bit.  The vacuum brazed diamond will cut clean on a variety of materials including granite, porcelain, marble, ceramic, & more!
 
7 Piece Dry Core Bit Small Kit Contains:
2 pc. 1/4″
2 pc. 5/16″
1 pc. 3/8″
1 pc. 1/2″
1 pc. 9/16″