Vermont Gage 111328150 Class Zz Plus Plug Gage 0.2815 in

Product Description

The VERMONT GAGE 111328150 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a tight tolerance. This gage measures a nominal diameter of 0.2815 inches with a tolerance of 0.0002 inches, making it suitable for precision go inspection work. Manufactured from tool steel with a 10 microfinish surface, it delivers consistent, repeatable measurements across production and quality control environments. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 standards. Machinists, quality technicians, and metrologists rely on this type of gage for fast, reliable attribute inspection of machined bores.

This plug gage is designed for go inspection applications, verifying that a hole or bore meets the minimum acceptable size. It is also used to set and calibrate micrometers, verniers, and other measuring devices in shop-floor and metrology lab settings. The 0.2815-inch diameter and 2.0-inch overall length make it a practical fit for light-duty precision inspection in both production and tool room environments. Typical users include quality control inspectors, machinists, and calibration technicians working with tight-tolerance machined components.

Key Features

• Nominal measurement diameter of 0.2815 inches for precise bore verification
• Class ZZ Plus tolerance of 0.0002 inches for repeatable go inspection
• Tool steel construction for durability and wear resistance
• 10 microfinish surface for consistent gage contact
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional standards

Compatibility

Designed for go inspection use with bores and holes at 0.2815 inches nominal diameter. Also suitable for setting and verifying micrometers, verniers, and other precision measuring instruments requiring a traceable reference standard.

Installation Notes

Plug gages are handled and stored by metrology or quality control personnel, not typically installed in a mechanical system. Clean the gage and the bore or instrument being checked before use to prevent debris from affecting the measurement. Avoid dropping or applying side load to the gage, as this can alter the surface finish or introduce dimensional error. Store in a protective case away from temperature extremes to maintain dimensional stability.