Vermont Gage 111331850 Class Zz Plus Plug Gage

Product Description

The VERMONT GAGE 111331850 is a Class ZZ Plus plug gage designed for precise go-inspection of bored, reamed, and drilled holes. Manufactured from tool steel with a 10 microfinish surface, this plug gage checks whether a hole falls within the specified tolerance of 0.0002 inches at a nominal diameter of 0.3185 inches. The overall length of 2.0000 inches provides comfortable handling during inspection. Each unit ships with a Certificate of Accuracy backed by NIST traceability, confirming conformance to ASME B89.1 dimensional standards. Quality control technicians, machinists, and metrologists rely on this gage for fast, repeatable attribute inspection on the shop floor or in the inspection lab.

This plug gage is suited for go-inspection tasks in precision machining, manufacturing, and quality assurance environments. It is used to verify hole diameter acceptance on parts produced by drilling, reaming, boring, or honing operations. The gage also serves as a reference standard for setting micrometers, verniers, and other dimensional measuring devices. It is appropriate for both light-production inspection and toolroom-level metrology in residential, commercial, and industrial manufacturing settings.

Key Features

• Class ZZ Plus tolerance grade rated to 0.0002 inches for reliable attribute inspection
• Nominal measurement diameter of 0.3185 inches
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface finish minimizes gauge-to-part friction and wear
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for documentation and audit requirements

Compatibility

Designed as a go-inspection plug gage for use with holes nominally sized at 0.3185 inches. Also suitable for setting and verifying micrometers, verniers, and other precision measuring devices per the stated application guidance in the product specifications.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean contact surfaces before each use and apply a light coat of instrument oil for storage. Handle with care to avoid dropping, as impact can alter the gage dimension and invalidate the NIST-traceable certification.