Vermont Gage 111157500 Class Zz Plus Plug Gage 0.575 in

Product Description

The VERMONT GAGE 111157500 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bores, holes, and internal features. Manufactured from tool steel with a 10 microfinish surface, this gage measures a nominal diameter of 0.575 inches and holds a tolerance of 0.0002 inches. At 2.0 inches in overall length, it is sized for easy single-hand use in production and quality-control environments. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Machinists, quality technicians, and tool-room professionals rely on this type of gage for go-inspection checks on finished workpieces.

This plug gage is suited for go inspection applications where verifying minimum acceptable hole size is required. It is also used to calibrate and verify the accuracy of set micrometers, verniers, and other measuring devices. Typical environments include machine shops, manufacturing floors, and metrology labs handling precision components in both job-shop and production settings. The 0.575-inch diameter range makes it appropriate for medium-small bore inspection work.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for high-accuracy go inspection
• 10 microfinish surface for consistent, repeatable gage-to-part contact
• Tool steel construction for hardness and wear resistance in production use
• Certificate of Accuracy included with NIST traceability
• Meets ASME B89.1 dimensional gage standards
• Overall length of 2.0 inches for comfortable single-hand handling

Compatibility

Designed for go inspection of 0.575-inch nominal diameter bores and internal features, and for use as a setting reference with set micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are used by quality technicians and machinists and require no permanent installation. Before use, clean the gage and the workpiece bore with a lint-free cloth to remove chips, coolant, and debris that could affect measurement accuracy. Never force the gage into a bore; apply only light, consistent hand pressure to avoid scoring the gage surface or damaging the part. Store in the protective case or designated gage block cabinet away from temperature extremes to preserve calibration integrity.