Vermont Gage 112112260 Class Zz Plus Plug Gage 12.26mm

Product Description

The VERMONT GAGE 112112260 is a Class ZZ Plus plug gage designed for precision hole diameter inspection in industrial and metrology applications. Built from tool steel with a 10 microfinish surface coating, it measures a nominal diameter of 12.26 mm with a tolerance of 0.00508 mm (0.005 mm). The overall length is 2.0000 inches. This gage is used by quality control technicians, machinists, and metrologists to verify bore dimensions quickly and accurately. Each unit ships with a Certificate of Accuracy that includes NIST traceability, confirming conformance to ASME B89.1 standards.

This plug gage is suited for go inspection tasks in manufacturing, toolroom, and quality assurance environments. It is compatible with standard gage handle sets and is used alongside micrometers, verniers, and other measuring devices to establish and verify dimensional tolerances. Typical applications include production floor inspection of drilled, reamed, or bored holes where tight dimensional control is required. The 12.26 mm nominal size targets metric-dimensioned workpieces across light industrial and precision machining operations.

Key Features

• Class ZZ Plus tolerance grade — 0.00508 mm tolerance for high-accuracy go inspection
• Tool steel construction for durability and dimensional stability under repeated use
• 10 microfinish surface coating reduces wear and ensures consistent gage contact
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for calibration records
• Compact 2.0000-inch overall length fits standard gage handle sets

Compatibility

Designed for use with standard plug gage handles and suitable for go inspection of 12.26 mm nominal diameter bores. Compatible with micrometers, verniers, and other dimensional measuring devices per the application data provided.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no permanent installation is required. Before use, clean the gage and bore thoroughly to remove chips, coolant, and debris that could affect measurement accuracy. Never force a plug gage into an undersized hole, as this can damage the gage surface and compromise its calibration. Store the gage in its protective case and re-certify on a schedule consistent with your quality management system requirements.