Vermont Gage 112114780 Class Zz Plus Plug Gage 14.78mm

Product Description

The VERMONT GAGE 112114780 is a Class ZZ Plus plug gage designed for go inspection of bored, reamed, or machined holes with a nominal diameter of 14.78 mm. Manufactured from tool steel, it carries a tolerance of 0.00508 mm and a 10 microinch surface finish, providing the dimensional accuracy required for quality control in precision machining environments. The gage includes a Certificate of Accuracy with NIST traceability, making it suitable for use in calibrated measurement programs. Licensed metrologists, quality technicians, and machinist-level inspectors typically put this tool to work on the shop floor or in a gage lab.

This plug gage is used to verify that a hole diameter meets minimum dimensional requirements before a part advances to the next stage of production or assembly. It is appropriate for go inspection routines in general manufacturing, aerospace component work, and toolroom applications. It also serves as a reference standard when setting micrometers, vernier calipers, and other precision measuring devices. The 14.78 mm diameter and Class ZZ Plus tolerance class make it a practical choice wherever ASME B89.1 conformance is required.

Key Features

• 14.78 mm nominal diameter for go inspection of precision bored or reamed holes
• Class ZZ Plus tolerance of 0.00508 mm for tightly controlled dimensional verification
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for wear resistance in regular production use
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of holes with a nominal diameter of 14.78 mm. Also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable reference standard at this diameter.

Installation Notes

Plug gages should be handled by qualified quality technicians or metrologists following established gage handling procedures. Clean the gage and the workpiece bore before use to prevent debris from affecting the measurement result or damaging the gage surface. Store the gage in its protective case when not in use and allow it to reach ambient temperature before gauging to avoid thermal expansion errors. Periodic recalibration against traceable standards is recommended per your facility quality management plan.