Starrett 234A-39

Product Highlights

• 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