Vermont Gage 112404850 Class Zz Minus Plug Pin Gage 4.85 Mm

Product Description

The VERMONT GAGE 112404850 is a Class ZZ minus plug pin gage ground to a diameter of 4.85 mm with a tolerance of 0.00508 mm. It is used to verify bore and hole dimensions as part of a NoGo inspection routine. The gage is machined from steel and finished to a 10 microinch surface finish, providing consistent, repeatable contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST standards. Machinists, quality technicians, and dimensional inspection personnel use this gage as part of go/nogo attribute inspection programs on production floors and in metrology labs.

This pin gage is suited for inspecting bored holes, reamed features, and precision-machined openings where dimensional conformance is critical. Its minus designation means the gage is ground to the lower tolerance boundary, making it appropriate for NoGo functional checks. It is also used to set and verify micrometers, verniers, and other variable measuring devices. The 2-inch overall length fits standard gage handle systems, making it compatible with typical plug gage setups used in both job shop and production inspection environments.

Key Features

• 4.85 mm measurement diameter with 0.00508 mm tolerance for precise NoGo inspection
• Class ZZ minus designation suited for NoGo functional checks and instrument calibration
• 10 microinch surface finish for consistent, repeatable contact
• Steel construction for durability in shop and lab environments
• Includes Certificate of Accuracy with NIST traceability
• 2-inch overall length compatible with standard plug gage handle systems

Compatibility

Designed for use in standard plug gage handle systems for NoGo inspection of 4.85 mm diameter bored or reamed features, and for setting micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists trained in dimensional metrology. Clean the gage and the feature being inspected before use to prevent debris from affecting measurement results. Never force the gage into a bore; light hand pressure is sufficient for a valid inspection check. Store the gage in its protective case when not in use to prevent surface damage that could compromise accuracy.