Vermont Gage 112300370 Class Zz Plus Plug Gage 0.37mm

Product Description

The VERMONT GAGE 112300370 is a Class ZZ Plus plug gage designed for precision dimensional inspection of small bores and holes. Built from tool steel with a 10 microfinish surface coating, this gage checks whether a feature meets its minimum acceptable size under go inspection methodology. It carries a 0.00508 mm tolerance and conforms to ASME B89.1 dimensional standards. Each unit ships with a Certificate of Accuracy that includes NIST traceability, making it suitable for use in quality control environments where documentation is required. Licensed metrologists, quality technicians, and precision machining shops rely on this type of gage for repeatable, reliable go/no-go inspection workflows.

This plug gage is sized at 0.37 mm diameter, placing it in the micro-bore range used in medical device manufacturing, electronics, watchmaking, and fine instrumentation production. It is appropriate for verifying bores in components where tolerances are tight and visual or tactile inspection is insufficient. The gage can also be used to set and verify micrometers, verniers, and other comparative measuring devices. Its compact overall length of 2.0000 inches makes it easy to handle in bench-top inspection setups.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for high-accuracy go inspection
• 0.37 mm diameter targets micro-bore applications in precision manufacturing
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface coating reduces friction and protects gage surface during use
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for quality documentation

Compatibility

Suitable for use as a go inspection gage and for setting micrometers, verniers, and other measuring devices requiring a 0.37 mm reference standard.

Installation Notes

Plug gages are handled and applied by quality control technicians or precision machinists — no power tools or utility shutoffs are required. Store the gage in its case when not in use to prevent surface damage and contamination. Apply only light, consistent hand pressure during inspection; forcing the gage can damage both the gage and the workpiece. Follow your facility calibration program and ASME B89.1 handling guidelines to maintain traceability.