Vermont Gage 111339350 Class Zz Plus Plug Gage 0.3935 in

Product Description

The VERMONT GAGE 111339350 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bores and holes with a nominal diameter of 0.3935 inches. Manufactured from tool steel with a 10 microfinish surface, this gage delivers a tolerance of 0.0002 inches, meeting the accuracy demands of quality control environments. At an overall length of 2.0 inches, it is suited for bench and floor inspection work performed by machinists, QC inspectors, and metrology technicians. Each unit ships with a Certificate of Accuracy with NIST Traceability, confirming conformance to ASME B89.1 standards.

This plug gage is used for go inspection of machined features in manufacturing and production environments, both light industrial and precision machining shops. It is also suitable for setting and verifying micrometers, verniers, and other measuring devices where a certified reference standard is required. The 0.3935-inch diameter makes it appropriate for inspecting drilled, reamed, or bored holes to that nominal dimension across a range of part materials and tolerances.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for tight dimensional control
• 10 microfinish surface for consistent, repeatable gage contact
• Tool steel construction for wear resistance and dimensional stability
• Includes Certificate of Accuracy with NIST Traceability
• Conforms to ASME B89.1 dimensional gage standards
• Suitable for go inspection and reference setting of precision measuring instruments

Compatibility

Designed for go inspection of bores and holes at a nominal diameter of 0.3935 inches, and suitable for use as a reference standard when setting micrometers, verniers, and other measuring devices requiring a certified plug gage.

Installation Notes

Plug gages are handled and used by QC inspectors and machinists; no power source or mechanical installation is required. Store in a protective case away from heat sources and contaminants to preserve the precision ground surface and dimensional integrity. Clean the gage and the bore with a lint-free cloth before use to prevent debris from affecting readings. Never force the gage into a bore that does not accept it freely during go inspection.