Vermont Gage 911107700 Class Zz Plus Plug Gage 0.077 in

Product Description

The VERMONT GAGE 911107700 is a Class ZZ Plus plug gage machined from tool steel and finished with a black oxide coating. It measures 0.077 inches in diameter with a tolerance of 0.0002 inches, meeting the precision requirements of ASME B89.1. Each unit ships with a Certificate of Accuracy with NIST traceability, making it suitable for documented inspection processes. This gage is used to verify bore and hole dimensions in production and quality-control environments. Machinists, quality technicians, and tool-and-die professionals rely on plug gages like this one to confirm that a feature is within print tolerance before parts move to the next stage of assembly or shipment.

This plug gage is intended for go inspection of small-diameter bores, as well as for setting and verifying micrometers, verniers, and other precision measuring devices. Its compact overall length of 2.0 inches suits bench-top inspection stations and in-process checks on the shop floor. The Class ZZ Plus designation indicates a tighter-tolerance gage suitable for production inspection where dimensional accuracy is critical. It is appropriate for both low-volume job shops and high-throughput manufacturing operations that require repeatable, traceable measurement.

Key Features

• 0.077-inch diameter with 0.0002-inch tolerance per ASME B89.1
• Class ZZ Plus classification for production-grade go inspection
• Tool steel construction for hardness and wear resistance
• Black oxide finish for corrosion resistance and reduced glare during inspection
• Includes Certificate of Accuracy with NIST traceability for documented quality records
• Compact 2.0-inch overall length for bench and in-process use

Compatibility

Designed for go inspection of 0.077-inch diameter bores and as a setting standard for micrometers, verniers, and other precision measuring instruments in machine shop and quality-control applications.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power tools or utilities need to be shut down for standard gage use. Store the gage in its protective case when not in use and apply a light coat of instrument oil to prevent corrosion. Do not force the gage into a feature; excessive insertion force can damage both the gage and the workpiece. Calibration intervals should follow your facility's quality management plan and applicable ASME B89.1 guidelines.