Vermont Gage 111163500 Class Zz Plus Plug Gage 0.635 in

Product Description

The VERMONT GAGE 111163500 is a Class ZZ Plus plug gage designed to verify bore and hole dimensions with precision in production and inspection environments. Built from tool steel, this gage measures a nominal diameter of 0.635 inches with a tolerance of 0.0002 inches and a 10 microfinish surface finish. It carries a Certificate of Accuracy with NIST traceability, meeting ASME B89.1 standards. Machinists, quality control technicians, and metrology professionals use this gage to confirm dimensional conformance on machined parts, assemblies, and tooling setups. The overall length is 2 inches, making it a compact, single-end inspection tool suited for bench or floor use.

This plug gage is intended for go inspection applications, including use with set micrometers, verniers, and other calibrated measuring devices. It is appropriate for both job shop and production floor inspection of drilled, reamed, or bored holes where tight dimensional tolerances must be verified. The Class ZZ Plus designation indicates a tighter tolerance grade suitable for applications requiring higher accuracy than standard ZZ class gages.

Key Features

• Nominal measurement diameter of 0.635 inches for precise bore verification
• Tolerance of 0.0002 inches meeting Class ZZ Plus accuracy requirements
• 10 microfinish surface finish for consistent, low-wear gage contact
• Constructed from tool steel for durability in production inspection use
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Designed for go inspection use with set micrometers, verniers, and other precision measuring devices where a 0.635-inch nominal bore diameter must be verified to Class ZZ Plus tolerances.

Installation Notes

Plug gages should be handled by metrology or quality control personnel following shop-floor calibration procedures. Clean the gage and workpiece bore thoroughly before use to prevent debris from affecting readings or causing gage wear. Store the gage in its protective case when not in use to maintain surface finish integrity. Do not force the gage into an undersized bore, as this will damage both the gage and the workpiece.