Aanraku Diamond Core Drill Bits for Glass Maximum Diamond Abrasive 1/8" 2 Pack

Two pack of core bits manufactured by Aanraku. Use with a drill press (not a stained glass grinder).

For best results, drill bits should be used with a drill press that is set on the lowest setting. About 25 revolutions per minute works best.

Please read the instructions on the back of the package. There is a learning curve to drilling holes in glass.