Vermont Gage 111150400 Class Zz Plus Plug Gage 0.504 in

Product Description

The VERMONT GAGE 111150400 is a Class ZZ Plus plug gage designed for precise go inspection of bored, drilled, and reamed holes. Built from tool steel with a 10 microfinish surface, it measures a nominal diameter of 0.504 inches with a tolerance of 0.0002 inches. This gage is used to verify that a hole falls within its specified dimensional limits, confirming that a workpiece is acceptable for assembly or further machining. It is installed and used by machinists, quality technicians, and metrology professionals in production and inspection environments. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting compliance documentation requirements.

This plug gage is suited for go inspection tasks in manufacturing and quality control settings. It is used with go/no-go gage sets to verify hole diameter conformance on machined parts across aerospace, automotive, and general industrial applications. The 111150400 is also appropriate for setting and calibrating micrometers, verniers, and other measuring devices where a known reference diameter is needed. Its 2.0-inch overall length provides adequate handling clearance in typical bench inspection setups.

Key Features

• Class ZZ Plus tolerance grade for go inspection applications
• 0.504-inch measurement diameter with 0.0002-inch tolerance
• 10 microfinish surface for accurate, repeatable gage contact
• Tool steel construction for durability in production inspection use
• Meets ASME B89.1 standards
• Includes Certificate of Accuracy with NIST Traceability

Compatibility

Designed for go inspection of holes at 0.504 inches nominal diameter and for use as a reference standard when setting micrometers, verniers, and other measuring devices requiring a traceable diameter reference.

Installation Notes

Plug gages should be handled by quality technicians or metrology personnel following established inspection procedures. Clean the gage and the bore thoroughly before use to prevent contamination from affecting readings. Store the gage in its protective case when not in use to prevent surface damage. Follow ASME B89.1 handling and storage guidelines to maintain gage accuracy and traceability.