Frac Drill Gauge

Fraction Drill Gauge, Stainless Steel Gage Conveniently Identifies Drill Bit Sizes From 1/16" To 1/2" x 64 THS, Etched Graduations Are Filled In Black To Give High Contrast & Will Not Wear Off, Gage Measures 2-3/8" x 6-3/4" Overall, Stainless Steel Will Not Rust.