Starrett 234A-15 End Measuring Rod with Insulating Rubber Handle - 15

The Starrett 234A-15 is a 15-inch end measuring rod (micrometer standard) designed for checking and setting micrometers of 2" capacity and larger. It is also widely used on machine tools for comparing gages, verifying precision measuring tools, measuring parallel surfaces, and a variety of other dimensional inspection tasks.

Key Features:

• 15" measurement length — ideal for setting and verifying large-capacity outside micrometers
• Special tool steel construction — rod form with both ends hardened and accurately lapped to a spherical radius for precise contact
• Insulating rubber handle — minimizes thermal expansion caused by hand heat, protecting measurement accuracy during use
• Spherical end geometry — ensures consistent, repeatable contact points when used as a micrometer setting standard
• Micrometer-grade standard — these are the same standards supplied with Starrett micrometers from the factory

The 234A-15 is part of Starrett's trusted 234 series of end measuring rods, available in a wide range of lengths to cover virtually any micrometer capacity. Whether used in a metrology lab or on the shop floor, this standard delivers the accuracy and reliability that Starrett has been known for since 1880.