Vermont Gage 111255700 Class Zz Minus Plug Pin Gage 0.5570 in

Product Description

The VERMONT GAGE 111255700 is a Class ZZ minus plug pin gage designed to measure a nominal diameter of 0.5570 inches with a tolerance of 0.0002 inches. This gage is used to verify that a drilled, reamed, or bored hole does not fall below the minimum acceptable size, making it a NoGo inspection tool in a standard go/no-go gage pair. The overall length is 2 inches. A Certificate of Accuracy with NIST Traceability is included, supporting quality control documentation requirements in calibrated inspection environments. The body is steel construction with a 10 micro surface finish.

This plug pin gage is used in machining, manufacturing, and inspection applications where hole diameter conformance must be verified. It is suited for use alongside set micrometers, verniers, and other measuring devices in dimensional inspection workflows. Typical users include machinists, quality control inspectors, toolroom technicians, and metrology professionals working to maintain tight tolerances on precision-bored or reamed features in production or job-shop environments.

Key Features

• Class ZZ minus tolerance classification for NoGo hole inspection
• Nominal diameter of 0.5570 inches with 0.0002 inch tolerance
• Overall length of 2 inches for standard handling and insertion
• Steel construction with 10 micro surface finish for durability and accuracy
• Includes Certificate of Accuracy with NIST Traceability for documentation compliance
• Compatible with set micrometers, verniers, and other measuring devices per manufacturer application data

Compatibility

Designed for use as a NoGo plug gage in go/no-go inspection setups and as a reference standard for setting micrometers, verniers, and other measuring devices where a 0.5570 inch diameter reference is required.

Installation Notes

Plug pin gages are handled and used by quality control technicians and machinists — no power tools or electrical shutoff is required. Store the gage in its protective case when not in use and avoid contact with abrasive surfaces or extreme temperature changes that could affect calibration. Clean the gage and the bore being checked before inspection to prevent debris from affecting readings. Follow your facility metrology program for periodic recalibration intervals.