Vermont Gage 112221980 Class Zz Minus Plug Pin Gage 21.98 Mm

Product Description

The VERMONT GAGE 112221980 is a Class ZZ Minus plug pin gage designed for precise dimensional inspection of bored holes and internal features. Manufactured from steel with a 10 micro finish coating, this pin gage measures 21.98 mm in diameter and holds a tolerance of 0.00508 mm, delivering the accuracy required for NoGo inspection routines. Overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documented quality programs in production and calibration environments. Machinists, quality technicians, and metrology professionals rely on this type of gage for fast, reliable attribute inspection.

This pin gage is intended for NoGo inspection applications and is compatible with use alongside set micrometers, verniers, and other precision measuring devices. It fits standard inspection workflows in manufacturing, machine shops, and quality control labs handling metric-dimensioned parts. The 21.98 mm diameter makes it appropriate for checking holes and bores machined to that nominal metric specification. Residential and light commercial fabrication shops as well as high-precision industrial environments both use Class ZZ pin gages for routine part acceptance and rejection checks.

Key Features

• Class ZZ Minus tolerance grade - 0.00508 mm tolerance for reliable NoGo attribute inspection
• Steel construction with 10 micro surface finish for durability and dimensional stability
• NIST-traceable Certificate of Accuracy included with each unit
• 21.98 mm measurement diameter, 2 inch overall length
• Compatible with set micrometers, verniers, and standard measuring instruments

Compatibility

Designed for use as a NoGo inspection gage and for setting and verifying micrometers, verniers, and other precision measuring devices requiring a 21.98 mm reference diameter.

Installation Notes

Pin gages are handled and used by quality technicians and machinists in inspection environments. Keep the gage clean and lightly oiled when stored to prevent corrosion on the steel surface. Do not force the pin into a feature under inspection - hand pressure only is appropriate for attribute gaging. Store in the provided case or a padded holder to protect the precision ground surface from damage.