Vermont Gage 111153100 Class Zz Plus Plug Gage 0.531 in

Product Description

The VERMONT GAGE 111153100 is a Class ZZ Plus plug gage machined from tool steel for precise bore and hole measurement in quality-control and inspection applications. The gage measures 0.531 inches in diameter with a tolerance of 0.0002 inches and a 10 microinch surface finish, delivering the dimensional accuracy required for go inspection work. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy with NIST Traceability, confirming compliance with ASME B89.1 standards. Machinists, metrologists, and QC inspectors use this gage to verify that bored or drilled features fall within specified limits.

This plug gage is suited for go inspection of holes and bores in production and toolroom environments. It is also used to calibrate and verify the accuracy of set micrometers, verniers, and other measuring devices. Applications span general machining, precision manufacturing, and incoming inspection where tight tolerances must be confirmed before parts advance in the production process. The 0.531-inch diameter makes it a direct fit for inspection of that nominal hole size across a range of materials and components.

Key Features

• Class ZZ Plus tolerance class at 0.0002 inches for high-accuracy go inspection
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for wear resistance and dimensional stability
• Includes Certificate of Accuracy with NIST Traceability
• Complies with ASME B89.1 dimensional standards
• Also serves as a reference standard for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of 0.531-inch nominal diameter holes and bores, and for use as a reference setting standard with micrometers, verniers, and comparable measuring instruments.

Installation Notes

Plug gages are handled and applied by machinists, metrologists, and QC inspectors — no special tooling is required for use, but proper handling practices apply. Keep the gage clean and lightly oiled when stored to prevent corrosion of the tool steel. Do not force the gage into an undersized hole, as this will damage both the gage and the workpiece. Store in a temperature-stable environment to maintain dimensional accuracy consistent with ASME B89.1 requirements.