Vermont Gage 112109680 Class Zz Plus Plug Gage 9.68 Mm

Product Description

The VERMONT GAGE 112109680 is a Class ZZ Plus cylindrical plug gage used to verify bore diameter during go inspection. Machined from tool steel with a 10 microfinish surface coating, it holds a tolerance of 0.005 mm (0.00508 mm actual) on a 9.68 mm nominal diameter. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in quality-controlled manufacturing and inspection environments. Dimensional metrologists, quality technicians, and precision machinists are the primary users of this instrument.

This plug gage is designed for go inspection applications where bore size acceptance or rejection must be confirmed quickly and reliably. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference diameter. Typical environments include machine shops, inspection labs, and production floors where hole tolerances must be confirmed to ASME B89.1 standards. The 9.68 mm diameter targets metric-dimensioned bores in light industrial, automotive, and precision mechanical assemblies.

Key Features

• Class ZZ Plus tolerance class per ASME B89.1 for go inspection service
• 0.005 mm tolerance on 9.68 mm nominal diameter
• Tool steel construction with 10 microfinish surface coating for wear resistance and dimensional stability
• NIST-traceable Certificate of Accuracy included with each unit
• 2.0000-inch overall length suits standard gage handle assemblies
• Suitable for setting and verifying micrometers, verniers, and other measuring devices

Compatibility

Designed for use with standard cylindrical plug gage handles accepting a 9.68 mm go-inspection member. Also functions as a reference standard for setting micrometers, verniers, and comparable measuring instruments requiring a certified metric reference diameter.

Installation Notes

Plug gages should be handled and stored per ASME B89.1 guidelines to preserve surface finish and dimensional integrity. Clean the gage and the bore being checked before use to prevent false readings from debris or cutting fluid. Do not force the gage member into the bore; go members should pass under their own weight or with light hand pressure only. Store in a protective case away from heat sources and corrosive environments to maintain NIST-traceable calibration status.