Starrett® End Measuring Rod, Series: 234, For Use With: 2 in Micrometer, 1/4 in Dia x 1 in L, Steel

• 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
• Larger sizes available on special order
• Rods or standards are for checking and setting micrometers of 2 in capacity and larger
• 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
• Spherical end geometry

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Starrett_3732XFL_3_Catalog.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Starrett_3732XFL_3_Catalog.pdf