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 Made of special tool steel in rod form with ends hardened and accurately lapped to a spherical radius With insulated handles to minimize expansion by heat when held in the hand 234 standards are the ones used for all micrometers furnished with standards Larger sizes available on special order SPECIFICATIONS Made in America: Yes Length (in): 33" Set Quantity: 1 End Geometry: Spherical Handle Type: With Insulating Handle