Starrett 234MA-375 End Measuring Rod with Insulated Handle and Spherical Ends, 375 mm Length

Starrett 234MA-375 End Measuring Rod with Insulated Handle and Spherical Ends, 375mm Length. Starrett 234 End Measuring Rods or “standards” are for checking and setting micrometers of 2" capacity and larger, and are also used on machine tools for comparing gages, checking precision measuring tools, for measuring parallel surfaces, and many other types of work. They are made of special tool steel in rod form with ends hardened and accurately lapped to a spherical radius.