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The Starrett 234B-3 micrometer standard without insulating handle has been discontinued and replaced by the 234A-3 measuring standard with insulating handle.
234B-3 End Measuring Rod: 3"
The 234B-3 is ideal for checking precision measuring tools.
Starrett 234 End Measuring Rods or standards are for checking and setting micrometers of 2" capacity and larger, and are also used on machine tools for comparing gages, checking precision measuring tools, for measuring parallel surfaces, and many other types of work. They are made of special tool steel in rod form with ends hardened and accurately lapped to a spherical radius. 3" w/o Rubber Handle.
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
Larger sizes available on special order
Ring-type knurled lock nut for quick and sure locking
Set Quantity: 1
Diameter (in): 1/4"
End Geometry: Spherical
Handle Type: Without Insulating Handle
The 234B-3 is used on machine tools for comparing gages.