Vermont Gage 111309950 Class Zz Plus Plug Gage 0.0995 in

Product Description

The VERMONT GAGE 111309950 is a Class ZZ Plus plug gage used for precision dimensional inspection of small-diameter bores and holes. Measuring 0.0995 inches in diameter with a tolerance of 0.0002 inches, this gage is manufactured from tool steel and features a 10 microfinish surface. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1. Machinists, quality technicians, and toolroom inspectors use this type of gage to verify hole sizes during in-process and final inspection routines.

This plug gage is suited for Go inspection applications on close-tolerance bores in production and toolroom environments. It is also used as a reference standard for setting micrometers, verniers, bore gages, and other comparative measuring instruments. The 0.0995-inch diameter targets small-hole applications common in precision machined components, hydraulic valves, instrument housings, and similar assemblies where tight dimensional control is critical.

Key Features

• Class ZZ Plus tolerance class at 0.0002 inches for high-precision Go inspection
• 10 microfinish surface reduces wear and ensures consistent gage-to-workpiece contact
• Tool steel construction provides hardness and dimensional stability over service life
• Includes Certificate of Accuracy with NIST traceability, meeting ASME B89.1 standards
• Suitable for setting micrometers, verniers, and other comparative measuring devices

Compatibility

Designed as a Go inspection plug gage for bores and holes at 0.0995 inches nominal diameter. Compatible for use with standard gage handle holders sized for the 0.0995-inch diameter range. Also functions as a reference setting standard for micrometers, bore gages, verniers, and similar instruments.

Installation Notes

Plug gages should be handled by qualified metrology or toolroom personnel following shop-floor gage-control procedures. Clean both the gage and the workpiece bore before each use to prevent debris from affecting readings or causing surface damage. Store the gage in its protective case when not in use to maintain the calibrated surface finish and dimensional integrity. Periodic re-calibration intervals should be established per your facility's gage control program in accordance with ASME B89.1.