Vermont Gage 112303510 Class Zz Plus Plug Gage 3.51mm

Product Description

The VERMONT GAGE 112303510 is a Class ZZ Plus plug gage designed for dimensional go inspection of precision bored holes and machined features. Manufactured from tool steel with a 10 microfinish surface, it provides consistent, reliable pass/fail measurement at a nominal diameter of 3.51 mm with a tolerance of 0.005 mm. Each gage ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 standards. Machinists, quality technicians, and metrology professionals use this tool for incoming inspection, in-process checks, and calibration verification of measuring instruments.

This plug gage is suited for use in precision manufacturing environments where close-tolerance hole inspection is required. It is commonly used in toolrooms, quality labs, and on the production floor to verify hole size compliance before assembly. In addition to go inspection of bored or reamed holes, it serves as a setting standard for micrometers, verniers, and other measuring devices where a known diameter reference is needed.

Key Features

• Class ZZ Plus tolerance grade per ASME B89.1 for reliable dimensional inspection
• 3.51 mm nominal diameter with 0.005 mm tolerance
• 10 microfinish surface for minimal wear on precision gaged bores
• Tool steel construction for durability in production and lab environments
• Includes Certificate of Accuracy with NIST traceability
• Suitable as a reference standard for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of precision machined holes at 3.51 mm nominal diameter, and for use as a setting reference with micrometers, verniers, and other measuring devices requiring a traceable diameter standard.

Installation Notes

Plug gages are handled and used by quality technicians and toolroom machinists, not installed in the field. Store the gage in its protective case when not in use to prevent surface damage and contamination. Clean the gage and the bore being inspected before use to ensure accurate measurement readings. Do not force the gage into a bore, as this can damage the gage surface or the workpiece.