General 24 Drill Gauge, 6-3/4 in L x 2-3/8 in W Dimensions, Stainless Steel

Drill gage is a useful guide for identifying drill bit sizes, extremely helpful when working with older, unmarked drill bits, as well as with bits that are too small to fit diameter markings. Measures bits from 1/16 to 1/2 in x 64ths metric range from 0.062 to 0.500 mm, made from heavy-duty stainless steel with black etched graduations.