Vermont Gage 112321230 Class Zz Plus Plug Gage 21.23mm

Product Description

The VERMONT GAGE 112321230 is a Class ZZ Plus plug gage machined from tool steel for dimensional inspection of bored holes and machined features at 21.23 mm nominal diameter. It carries a tolerance of 0.00508 mm and is supplied with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 requirements. The overall length is 2.0000 inches. Machinists, quality technicians, and metrology professionals use this gage as a go-inspection reference to confirm that a hole or bore has been produced to minimum acceptable size before the part advances in production.

This plug gage is suited for use in production floor inspection, incoming inspection, and calibration lab environments. It is compatible with go inspection routines and can serve as a reference standard when setting micrometers, verniers, and other measuring devices. The 10 Micro coating finish provides a controlled surface condition that supports consistent, repeatable readings across the working surface of the gage pin.

Key Features

• Class ZZ Plus tolerance grade: 0.00508 mm, suitable for go inspection of precision bores
• Tool steel construction for wear resistance and dimensional stability
• 10 Micro coating finish for a consistent, repeatable contact surface
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards
• Compatible as a reference standard for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of holes and bores at 21.23 mm nominal diameter. Suitable for use with micrometers, verniers, and other measuring devices as a setting reference, per ASME B89.1.

Installation Notes

Plug gages are handled and used by qualified metrology or quality control personnel. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Do not force the gage pin into an undersized bore, as this can cause galling and affect the accuracy of the gage. Store in a protective case away from impact and temperature extremes to maintain dimensional integrity.