5 Pack Diamond Coated Drills Size #50

These diamond-coated drills are ideal for use on stones, glass, pearls, and even ceramics. The diamond is evenly plated on high speed steel blanks for maximum life. *Please note that you should always use a very small amount of water or coolant when drilling for both longer drill life and faster cutting.

Includes: (5) drills; size #50, medium/fine grit.