Vermont Gage 111131500 Class Zz Plus Plug Gage 0.315 in

Product Description

The VERMONT GAGE 111131500 is a Class ZZ Plus plug gage used to verify bore and hole dimensions to a precise tolerance of 0.0002 inches. Manufactured from tool steel and finished to a 10 microfinish surface, it delivers consistent, repeatable measurements in demanding shop environments. The gage has an overall length of 2.0 inches and a measurement diameter of 0.315 inches. A Certificate of Accuracy with NIST traceability is included, making it ready for documented quality assurance programs. Machinists, quality technicians, and metrology professionals use this gage to confirm hole sizes before and after machining operations.

This plug gage is suited for go inspection applications in production and inspection environments. It is commonly used alongside set micrometers, verniers, and other measuring devices to establish or verify dimensional accuracy. Typical installations include in-process inspection on machine shop floors and final inspection stations in manufacturing facilities. The gage meets ASME B89.1 standards, qualifying it for use in formally controlled metrology programs at both the shop level and in dedicated inspection labs.

Key Features

• Measurement diameter of 0.315 inches for precise hole and bore verification
• Class ZZ Plus tolerance rating of 0.0002 inches for high-accuracy go inspection
• Tool steel construction for durability and dimensional stability under repeated use
• 10 microfinish surface for smooth, consistent gage entry and minimal wear on inspected parts
• Meets ASME B89.1 standards for dimensional measuring tools
• Includes Certificate of Accuracy with NIST traceability for documented quality control

Compatibility

Designed for go inspection use with set micrometers, verniers, and other standard measuring devices in conformance with ASME B89.1.

Installation Notes

This gage is handled and applied 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 prevent corrosion and surface damage to the tool steel. Clean the gage and the inspected bore before use to ensure accurate readings and prevent premature wear. Never force the gage into an undersized bore, as this can damage the precision ground surface and invalidate accuracy.