Vermont Gage 112108720 Class Zz Plus Plug Gage 8.72mm

Product Description

The VERMONT GAGE 112108720 is a Class ZZ Plus plug gage designed for dimensional inspection of bores and holes with a nominal diameter of 8.72 mm. Manufactured from tool steel with a 10 microfinish surface, it delivers consistent, repeatable results in shop-floor and quality-lab environments. The gage holds a tolerance of 0.00508 mm, meeting the requirements of ASME B89.1. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements for ISO and AS quality systems. Licensed metrologists, quality technicians, and precision machinists use this gage as part of go inspection routines and for setting micrometers, verniers, and other measuring devices.

This plug gage is suited for go inspection applications in manufacturing, machining, and quality control settings. It is appropriate for both production floor use and calibration lab environments where ASME B89.1 compliance is required. Typical applications include verifying bore diameter acceptance on machined components and serving as a reference standard when setting variable measuring instruments such as micrometers and verniers.

Key Features

• Class ZZ Plus tolerance grade per ASME B89.1 for reliable go inspection
• 8.72 mm nominal diameter with 0.00508 mm tolerance
• Tool steel construction for hardness and wear resistance
• 10 microfinish surface for consistent gage-to-workpiece contact
• Includes Certificate of Accuracy with NIST traceability
• Overall length of 2.0000 inches for standard handle compatibility

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage for use with standard gage handle sets and applicable to any application requiring ASME B89.1 compliant go inspection at an 8.72 mm diameter.

Installation Notes

Plug gages are handled and used by quality technicians and metrology personnel, not installed in the traditional sense. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the bore being inspected before use to ensure accurate readings. Do not force the gage into an undersized bore, as this can damage the gage surface finish and invalidate calibration.