Vermont Gage 112109300 Class Zz Plus Plug Gage 9.3 Mm

Product Description

The VERMONT GAGE 112109300 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored holes, machined features, and precision-fit components. The gage checks a 9.3 mm diameter with a tolerance of 0.00508 mm and a 10 microfinish surface on the gaging member. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements of ISO-registered and quality-controlled shop environments. Machinists, tool-room technicians, and quality control inspectors use this gage to verify that a hole or feature falls within the allowable go limit before assembly or final inspection sign-off.

This plug gage is suited for go inspection tasks in precision machining, metal fabrication, and quality assurance workflows. It is also used to set and verify micrometers, verniers, bore gages, and other variable measuring devices where a traceable reference standard is required. The 9.3 mm diameter and overall length of 2.0000 inches make it practical for bench-top inspection stations and in-process checks on the machine floor. Applicable to both job-shop and production environments where ASME B89.1 gage tolerances are specified.

Key Features

• Class ZZ Plus tolerance grade per ASME B89.1 for go inspection applications
• 9.3 mm gaging diameter with 0.00508 mm tolerance
• 10 microfinish surface on gaging member for accurate, repeatable contact
• Tool steel construction for wear resistance in production inspection use
• Certificate of Accuracy included with NIST traceability for quality documentation

Compatibility

Designed for use as a go inspection gage and as a setting standard for micrometers, verniers, bore gages, and other measuring devices requiring a traceable 9.3 mm reference.

Installation Notes

Handle plug gages with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Store the gage in its protective case when not in use and apply a light coat of instrument oil for long-term storage. Do not force the gage into a hole; a go gage should pass under its own weight or with light hand pressure only. Inspect the gaging surface regularly for wear or damage that could affect measurement accuracy.