Vermont Gage 111150900 Class Zz Plus Plug Gage 0.509 in

Product Description

The VERMONT GAGE 111150900 is a Class ZZ Plus plug gage designed for precise dimensional inspection of bored, drilled, and reamed holes. It measures 0.509 inches in diameter and is manufactured from tool steel to provide long service life under repeated use. The gage holds a tolerance of 0.0002 inches and features a 10 microinch surface finish, meeting the accuracy demands required for Go inspection work. Each unit ships with a Certificate of Accuracy with NIST traceability, confirming conformance to ASME B89.1. Machinists, quality control technicians, and tool room personnel rely on this type of gage to verify that a workpiece hole falls within the specified dimensional limits.

This plug gage is suited for Go inspection applications in manufacturing and quality assurance environments. It is compatible with use alongside set micrometers, verniers, and other precision measuring devices for complete inspection setups. The 2.0 inch overall length provides a comfortable, controlled grip during single-handed gage insertion. Typical applications include production floor inspection, incoming inspection of machined components, and calibration reference checks in tool rooms handling close-tolerance work.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for high-accuracy Go inspection
• Tool steel construction for durability and dimensional stability under repeated use
• 10 microinch surface finish reduces wear and ensures consistent contact with the workpiece
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• 2.0 inch overall length for controlled single-handed insertion

Compatibility

Designed for Go inspection use with set micrometers, verniers, and other precision measuring devices. Suitable as a Class ZZ Plus plug gage for any application requiring ASME B89.1-compliant hole inspection at 0.509 inches diameter.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists; no power source or tool disconnection is required prior to use. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel body. Never force the gage into a hole, as forcing can damage the gage land or alter the workpiece surface. Store in the original case or a padded gage block box to protect the precision-ground surface finish.