End Measuring Rod with Insulated Handle and Spherical Ends, 25mm Length
Available plain or with insulated handles to minimize expansion by heat when held in the hand
Ideal for checking precision measuring tools
Larger sizes available on special order
Made of special tool steel in rod form with ends hardened and accurately lapped to a spherical radius
Rods or standards are for checking and setting micrometers of 2" capacity and larger
These standards are the ones used for all micrometers furnished with standards
Used on machine tools for comparing gages
Useful for measuring parallel surfaces