Starrett 185 Time Saver Tap and Drill Gage; Nos. 1-60 / .228-.040"

The Starrett 185 Time Saver and Drill Gage provides correct sizing of a tap drill for any commonly sized machine screw tap in NF National Fine or NC National Coarse Thread Series. This tap and drill gage has a black matte finish with information steel stamped on one side and white marked on the reverse side for quick, clear reading. Nos. 1 to 60 and .228 to .040".