Vermont Gage 111172100 Class Zz Plus Plug Gage 0.721 in

Product Description

The VERMONT GAGE 111172100 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored holes and machined features. Manufactured from tool steel, this gage measures a nominal diameter of 0.721 inches with a tolerance of 0.0002 inches, meeting the accuracy demands required for Go inspection applications. It conforms to ASME B89.1 standards and ships with a Certificate of Accuracy with NIST traceability, making it suitable for use in calibrated measurement programs. Machinists, quality control technicians, and tool and die professionals use this gage to verify hole size compliance quickly and reliably on the shop floor or in a metrology lab.

This plug gage is used in Go inspection routines to confirm that a machined hole falls within the lower tolerance limit. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a traceable reference standard. The 0.721-inch diameter and 2.0-inch overall length make it practical for inline inspection of production parts in both job shop and high-volume manufacturing environments. It is appropriate for any setting where ASME B89.1-compliant dimensional verification is required.

Key Features

• Class ZZ Plus tolerance classification per ASME B89.1 for Go inspection use
• Tool steel construction for wear resistance and dimensional stability
• Tolerance of 0.0002 inches supports tight-tolerance hole verification
• 10 micro surface finish coating for consistent gage contact and accurate readings
• Includes Certificate of Accuracy with NIST traceability for calibration records
• Compact 2.0-inch overall length suits a wide range of part geometries

Compatibility

Designed for Go inspection of holes with a nominal diameter of 0.721 inches. Also used to set and verify micrometers, verniers, and other precision measuring devices requiring a traceable dimensional reference.

Installation Notes

Plug gages should be handled by qualified inspection or metrology personnel. Clean and inspect the gage and the part bore before use to remove chips, burrs, or debris that could cause false readings or damage the gage surface. Do not force the gage into a bore; resistance indicates the hole is undersize. Store the gage in its protective case when not in use to prevent surface damage and maintain calibration integrity.