Vermont Gage 911128200 Class Zz Plus Plug Gage 0.282 in

Product Description

The VERMONT GAGE 911128200 is a Class ZZ Plus plug gage designed to perform go-type dimensional inspection on bored holes, drilled passages, and machined features. It measures a nominal diameter of 0.282 inches with a tolerance of 0.0002 inches, providing repeatable verification that a feature meets its minimum acceptable size. The gage body is machined from tool steel and finished in black oxide for corrosion resistance and long service life. At 2.0 inches in overall length, it fits standard gage handle assemblies used in production and inspection environments. A Certificate of Accuracy with NIST traceability is included, supporting documented quality programs and calibration records.

This plug gage is suited for use in machine shops, manufacturing facilities, and quality control labs where hole diameter conformance must be verified against ASME B89.1 standards. It is commonly used alongside set micrometers, verniers, and other precision measuring devices to confirm go-condition acceptance on production parts. Machinists, quality technicians, and tool-and-die professionals install and use this gage in both high-volume production inspection and low-volume precision work.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for close-tolerance go inspection
• Tool steel construction for hardness and dimensional stability
• Black oxide finish resists corrosion during regular handling
• Overall length of 2.0 inches fits standard gage handle assemblies
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Manufactured to ASME B89.1 standards

Compatibility

Designed as a go-type plug gage for use with standard gage handle assemblies and compatible with set micrometers, verniers, and other precision measuring devices as noted in the product specifications.

Installation Notes

Plug gages are handled and used by machinists and quality inspection personnel — no power tools or electrical shutoffs are required. Clean the gage and the feature being inspected before use to prevent false readings caused by debris or cutting fluid. Do not force the gage through a feature; go gages should pass under their own weight or with light hand pressure. Store in a protected case away from impacts and temperature extremes to preserve calibration.