Vermont Gage 111134900 Class Zz Plus Plug Gage 0.349 in

Product Description

The VERMONT GAGE 111134900 is a Class ZZ Plus plug gage machined from tool steel for precision bore and hole inspection. It measures internal diameters at 0.349 inches with a tolerance of 0.0002 inches, delivering the accuracy required for go inspection work on the shop floor or in a quality lab. The working surface carries a 10 microfinish, reducing wear and ensuring repeatable contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS9100 quality systems. Machinists, toolroom technicians, and quality inspectors use this gage as part of a go/no-go inspection routine.

This plug gage is suited to residential and commercial manufacturing environments where tight-tolerance hole verification is required. It is used with set micrometers, verniers, and other measuring devices to verify bore size compliance per ASME B89.1. The 2.0-inch overall length provides adequate handle clearance for insertion into shallow bores and standard through-holes. It is a practical addition to any inspection station or toolroom calibration kit that requires a certified, traceable reference standard at this diameter.

Key Features

• 0.349-inch measurement diameter with 0.0002-inch Class ZZ Plus tolerance
• 10 microfinish surface for reduced wear and consistent gage contact
• Tool steel construction for hardness and dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional standards
• 2.0-inch overall length suits shallow and standard bore applications

Compatibility

Designed for go inspection use with set micrometers, verniers, and other measuring devices requiring a certified plug gage reference at 0.349 inches diameter per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and toolroom machinists — no power source or mechanical installation is required. Store the gage in its protective case and avoid contact with abrasive surfaces to preserve the 10 microfinish. Clean the gage and bore with a lint-free cloth before use to prevent debris from affecting the measurement. Do not force the gage into an undersized bore, as this will damage the working surface and invalidate calibration.