Starrett 234A-21

Product Highlights

• Length (in) 21"
• Set Quantity 1
• Diameter (in) 7/16"
• End Geometry Spherical
• Handle Type With Insulating Handle
• Rods or €œstandards€ 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