Starrett 187 - Jobbers Drill Gage, Hardened
The Starrett 187 Jobbers' Drill Gage provides quick sizing of any twist drill from 1/16 to 1/2" by 64ths. This product includes 29 holes that are marked with drill size in inches and decimal equivalents. Approximately 5/64" thick by 2-5/16" wide by 6-1/4" long.