Vermont Gage 111349850 Class Zz Plus Plug Gage 0.4985 in

Product Description

The VERMONT GAGE 111349850 is a Class ZZ Plus plug gage ground to a 0.4985-inch diameter with a 0.0002-inch tolerance and a 10 microfinish surface. It is used to verify bore diameters and hole sizes in machined parts during go inspection procedures. The gage is manufactured from tool steel and conforms to ASME B89.1 dimensional standards. Each unit ships with a Certificate of Accuracy that carries NIST traceability, satisfying quality-system documentation requirements in production, inspection, and metrology environments. Machinists, quality technicians, and metrologists are the primary users.

This plug gage is suited for go inspection of bores, as well as for setting and calibrating micrometers, verniers, and other measuring devices. At 0.4985 inches, it falls in the common fractional-near-half-inch range frequently encountered in machined components, fixtures, and assemblies across manufacturing, toolroom, and inspection lab settings. The 2.0-inch overall length provides comfortable handling during single-handed check operations without interfering with part geometry.

Key Features

• 0.4985-inch measurement diameter with a 0.0002-inch tolerance per ASME B89.1
• 10 microfinish surface for accurate, repeatable contact with bore walls
• Tool steel construction for wear resistance and dimensional stability
• Includes Certificate of Accuracy with NIST traceability for quality-system compliance
• Compatible with go inspection workflows and measuring device calibration setups
• 2.0-inch overall length for straightforward single-hand use

Compatibility

Designed for go inspection of bores and for setting micrometers, verniers, and other measuring devices requiring a 0.4985-inch reference diameter.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in inspection and toolroom environments. Clean the gage and the bore with a lint-free cloth before use to prevent debris from affecting the reading. Do not force the gage into a bore; excessive insertion force can damage both the gage and the workpiece. Store the gage in its case or on a clean surface away from other metal tools to protect the ground surface and maintain calibration integrity.