Vermont Gage 112303710 Class Zz Plus Plug Gage 3.71mm

Product Description

The VERMONT GAGE 112303710 is a Class ZZ Plus plug gage machined from tool steel for dimensional inspection of bored holes and precision-fitted features. It measures a nominal diameter of 3.71 mm with a tolerance of 0.00508 mm, making it suitable for tight-tolerance go inspection work. The 10 microfinish surface ensures accurate, repeatable contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 requirements. Machinists, quality technicians, and tool-and-die professionals rely on this gage for incoming inspection, in-process checks, and calibration reference tasks.

This plug gage is designed for go inspection applications and can also be used to set micrometers, verniers, and other measuring devices requiring a known reference diameter. It is suited for use in machine shops, manufacturing cells, inspection departments, and any environment where hole diameter verification is part of the quality workflow. The compact overall length of 2.0000 inches makes it easy to handle during high-volume inspection routines.

Key Features

• Class ZZ Plus tolerance standard for precision go inspection
• 3.71 mm nominal diameter with 0.00508 mm tolerance
• 10 microfinish surface for accurate, repeatable contact
• Tool steel construction for durability in production environments
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 standards

Compatibility

Designed for go inspection of features at 3.71 mm nominal diameter; also compatible with use as a setting reference for micrometers, verniers, and other measuring devices that accept plug-style references.

Installation Notes

Handle plug gages with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in its protective case when not in use to preserve the microfinish surface. Do not force the gage into an undersized feature; forcing will damage both the gage and the workpiece. Periodic recalibration against a traceable standard is recommended to maintain measurement integrity over time.