FEATURES  Rods or standards are for checking and setting micrometers of 2" capacity and larger  Used on machine tools for comparing gages  Ideal for checking precision measuring tools  Useful for measuring parallel surfaces  Available plain or with insulated handles to minimize expansion by heat when held in the hand  These standards are the ones used for all micrometers furnished with standards  Made of special tool steel in rod form with ends hardened and accurately lapped to a spherical radius  Larger sizes available on special order  SPECIFICATIONS  Made in America: Yes  Length (in): 11"  Set Quantity: 1  Diameter (in): 3/8"  End Geometry: Spherical  Handle Type: With Insulating Handle