Vermont Gage 111173100 Class Zz Plus Plug Gage 0.731 in

Product Description

The VERMONT GAGE 111173100 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored, reamed, or drilled holes. It measures a nominal diameter of 0.731 inches with a tolerance of 0.0002 inches, making it appropriate for precision quality control in production and inspection environments. The 10 microinch finish on the gage member supports accurate, repeatable contact with the workpiece surface. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements in ISO and ASME-compliant quality systems. Machinists, metrologists, and quality technicians use this gage to verify hole size acceptance on the shop floor or in a dedicated inspection area.

This plug gage is suited for go inspection of holes in manufacturing, toolroom, and metrology lab settings. It serves as a direct-reference tool when calibrating or verifying set micrometers, verniers, and other measuring devices. The 2.0-inch overall length provides a comfortable handling profile for single-hand operation during routine inspection of machined components. It conforms to ASME B89.1 standards, which define tolerances, finish requirements, and dimensional verification methods for plain plug gages used in both light-production and precision-inspection applications.

Key Features

• 0.731-inch nominal measurement diameter for precise hole inspection
• Class ZZ Plus tolerance of 0.0002 inches for tight dimensional control
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for wear resistance and long service life
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Conforms to ASME B89.1 plain plug gage standards

Compatibility

Designed for go inspection of 0.731-inch nominal diameter holes and as a reference standard for setting micrometers, verniers, and comparable measuring instruments in toolroom and production inspection applications.

Installation Notes

Plug gages should be handled by qualified inspection or machining personnel following shop metrology procedures. Store the gage in its protective case when not in use and apply a light film of instrument oil to prevent corrosion. Do not force the gage member into an undersized hole, as this will damage the gage surface and compromise accuracy. Periodic recalibration against NIST-traceable standards is recommended to maintain measurement integrity over time.