Vermont Gage 111282100 Class Zz Minus Plug Pin Gage 0.8210 in

Product Description

The VERMONT GAGE 111282100 is a Class ZZ minus plug pin gage machined to a 0.8210-inch nominal diameter, designed for NoGo inspection work in quality-control and metrology applications. The minus tolerance designation means the gage is ground to the lower end of the Class ZZ tolerance band, which is 0.0002 inches on this diameter. Manufactured from steel, it delivers the dimensional stability and wear resistance required for repeated use on the shop floor or in the inspection room. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in ISO and AS9100 quality systems.

This pin gage is used by machinists, quality technicians, and metrologists to verify that a bored, drilled, or reamed hole does not exceed its maximum material condition limit. At 0.8210 inches, it is well suited for inspecting medium-bore features in precision-machined components across general manufacturing, aerospace, and automotive environments. It can also be used to calibrate or verify the accuracy of micrometers, verniers, and other measuring devices when a known reference diameter is needed.

Key Features

• Class ZZ minus tolerance ground to 0.0002 inches for reliable NoGo inspection
• 0.8210-inch nominal diameter for medium-bore feature verification
• Steel construction provides dimensional stability and long service life
• 10 micro finish on the gage surface for consistent, repeatable contact
• Overall length of 2 inches for comfortable single-hand use
• Includes Certificate of Accuracy with NIST traceability for documented quality systems

Compatibility

Designed for use as a NoGo plug gage in standard pin gage sets and gage handle systems accepting 0.8210-inch diameter pin members. Also suitable as a reference standard for setting micrometers, verniers, and similar measuring devices.

Installation Notes

Plug pin gages are handled and used by quality technicians and metrologists, not installed in the traditional sense. Store the gage in its protective case when not in use and apply a light coat of instrument oil to prevent corrosion. Do not force the gage into a bore; a properly sized handle and light, steady insertion pressure are correct practice. Inspect the gage surface periodically for wear or nicks that could affect measurement accuracy.