Flex Coat Pilot Drill Bits - $10.79

Easily ream out cork grips to fit your rod blanks. Pilot Drill Bits guide themselves through pre-existing holes to increase the diameter. They are made from spade bits with an aluminum pilot on the tip. When used with a hand drill, the result is a perfectly centered hole.Sizes:5/16"3/8"7/16"1/2"9/16"5/8". - $10.79