Vermont Gage 112306450 Class Zz Plus Plug Gage 6.45mm

Product Description

The VERMONT GAGE 112306450 is a Class ZZ Plus plug gage manufactured from tool steel for use in precision dimensional inspection. It measures 6.45 mm in diameter with a tolerance of 0.00508 mm and features a 10 microfinish surface, making it suitable for Go inspection applications where tight tolerances must be verified. The overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements of quality-controlled manufacturing and inspection environments. Machinists, quality technicians, and metrology professionals use this gage to verify bore and hole dimensions against specified limits.

This plug gage is used in manufacturing, machining, and inspection settings where bore diameter must be confirmed within close tolerances. It is suited for use alongside micrometers, verniers, and other measuring devices for Go inspection routines. The 10 microfinish surface finish minimizes wear on precision bores during repeated checks. Typical applications include incoming inspection, in-process quality control, and final part verification in job shops, production facilities, and toolrooms.

Key Features

• Class ZZ Plus tolerance rating: 0.00508 mm for high-accuracy Go inspection
• 6.45 mm diameter tool steel construction for durability and dimensional stability
• 10 microfinish surface for reduced wear and consistent contact with measured bores
• Overall length of 2.0000 inches for standard handle compatibility
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Conforms to ASME B89.1 standards

Compatibility

Designed for use with standard plug gage handles and compatible with micrometers, verniers, and other measuring devices in Go inspection applications per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power source or mechanical installation is required. Store the gage in its protective case when not in use to preserve the microfinish surface and prevent corrosion. Clean the gage and the bore to be inspected before use to avoid false readings caused by debris or cutting fluid. Do not force the gage into an undersized bore, as this can damage the finish and alter the gage diameter over time.