Vermont Gage 112103100 Class Zz Plus Plug Gage 3.1mm

Product Description

The VERMONT GAGE 112103100 is a Class ZZ Plus plug gage used for dimensional inspection of drilled, reamed, or bored holes with a nominal diameter of 3.1 mm. Manufactured from tool steel with a 10 microfinish surface, this gage provides a tolerance of 0.00508 mm, meeting the accuracy requirements of ASME B89.1. Each unit ships with a Certificate of Accuracy traceable to NIST. The overall length is 2.0000 inches. Licensed metrology technicians, machinists, and quality inspectors use this gage to verify hole size acceptance on production and inspection floors.

This plug gage is suited for go inspection applications where precise hole diameter verification is required. It is compatible with standard gage handle systems and is commonly used alongside set micrometers, verniers, and other calibrated measuring devices. Typical applications include incoming inspection, in-process quality control, and final inspection in machining and manufacturing environments handling small-diameter bored or drilled features.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for precision go inspection
• 10 microfinish surface for accurate, repeatable contact
• Tool steel construction for wear resistance and dimensional stability
• Complies with ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• Compatible with standard gage handle systems used with set micrometers and verniers

Compatibility

Designed for go inspection of 3.1 mm nominal diameter holes; suitable for use with standard plug gage handles and compatible with set micrometers, verniers, and other measuring devices as noted in the product specifications.

Installation Notes

Plug gages should be handled and stored in a clean, temperature-stable environment to prevent thermal expansion errors. Before use, inspect the gage and mating hole for debris or burrs that could affect measurement accuracy. Do not force the gage into an undersized hole; excessive force can damage both the gage and the workpiece. This product is typically used by quality technicians and machinists following facility metrology procedures and ASME B89.1 guidelines.