Vermont Gage 112406430 Class Zz Minus Plug Pin Gage 6.43mm

Product Description

The VERMONT GAGE 112406430 is a Class ZZ Minus plug pin gage machined from steel for precise NoGo dimensional inspection. It measures a nominal diameter of 6.43 mm with a tolerance of 0.00508 mm, making it suitable for high-accuracy go/no-go gauging workflows. The overall length is 2 inches. Each unit ships with a Certificate of Accuracy with NIST traceability, confirming the gage meets Class ZZ Minus specifications straight out of the package. Machinists, quality technicians, and metrology professionals use this gage to verify that bores, holes, and features do not exceed the maximum allowable dimension.

This plug pin gage is used in manufacturing and inspection environments where bore size verification is required. Typical applications include NoGo inspection of drilled or reamed holes, as well as setup and calibration verification of micrometers, verniers, and other measuring devices. It is well suited for tool rooms, quality labs, and production floor inspection stations handling metric-dimensioned workpieces in the 6.43 mm range.

Key Features

• Class ZZ Minus tolerance of 0.00508 mm for high-precision NoGo gauging
• Steel construction for durability and dimensional stability
• 10 Microfinish surface coating for consistent, low-wear contact
• Includes Certificate of Accuracy with NIST traceability
• Compact 2-inch overall length for easy handling in tight inspection setups
• Suitable for use with micrometers, verniers, and other measuring devices

Compatibility

Designed for use as a NoGo plug pin gage in metric inspection applications, and compatible with standard gage handle systems that accept pin gages in the 6.43 mm diameter range.

Installation Notes

Pin gages should be handled and stored by quality technicians following standard metrology practices to prevent damage to the precision ground surfaces. Clean the gage and the workpiece bore before use to ensure accurate measurement. Do not force the gage into a bore; light hand pressure is the correct technique for Class ZZ pin gage inspection. Store in a protective case away from moisture and temperature extremes to maintain NIST-traceable accuracy.