Vermont Gage 112106120 Class Zz Plus Plug Gage 6.12mm

Product Description

The VERMONT GAGE 112106120 is a Class ZZ Plus cylindrical plug gage machined from tool steel for dimensional go inspection of bored holes, machined bores, and precision-fit features. It measures 6.12 mm in diameter with a tolerance of 0.005 mm and a 10 microfinish surface finish, providing consistent, repeatable results in high-volume production and quality-control environments. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST standards, satisfying audit and calibration documentation requirements. Machinists, quality technicians, and metrology professionals use this gage to verify hole acceptance quickly without requiring a bench measurement setup.

This plug gage is suited for go inspection of 6.12 mm diameter features in precision machined components across manufacturing, aerospace, automotive, and general metalworking applications. It is also used to set micrometers, verniers, bore gages, and other comparative measuring devices to a known reference diameter. The compact form factor and hardened tool steel construction make it practical for both shop-floor use and inspection room environments where consistent gage life and dimensional stability are required.

Key Features

• Class ZZ Plus tolerance grade - 0.005 mm tolerance for reliable go inspection
• 10 microfinish surface finish reduces wear on the gage and the workpiece bore
• Tool steel construction provides hardness and dimensional stability over repeated use
• Overall length of 2.0000 inches suits standard gage handle or direct hand-held use
• Includes Certificate of Accuracy with NIST Traceability for calibration documentation
• Conforms to ASME B89.1 standards for plain plug gages

Compatibility

Designed for go inspection of 6.12 mm diameter bores and for setting micrometers, verniers, bore gages, and other comparative measuring instruments requiring a precision reference diameter.

Installation Notes

Plug gages should be handled by metrology or quality technicians following established gage care procedures. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the workpiece bore with a lint-free cloth before inspection to remove chips, coolant, or debris that could affect readings. Do not force the gage into an undersized bore, as this can damage the gage surface and compromise dimensional accuracy.