Vermont Gage 112100640 Class Zz Plus Plug Gage 0.64 Mm

Product Description

The VERMONT GAGE 112100640 is a Class ZZ Plus plug gage designed for precise go inspection of small-diameter bores and holes. Built from tool steel with a 10 microfinish surface, this gage measures workpieces at a nominal diameter of 0.64 mm with a tolerance of 0.00508 mm. It ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in calibrated inspection environments. Machinists, quality technicians, and metrologists use this gage to verify hole size conformance during incoming inspection, in-process checks, and final acceptance. Its compact overall length of 2.0000 inches suits tight-clearance inspection setups.

This plug gage is used in machine shops, tool rooms, and quality labs where small-bore dimensional verification is required. It is well-suited for setting and verifying micrometers, verniers, and other precision measuring devices, as noted in its application specs. The Class ZZ Plus designation places it within ASME B89.1 standards, making it appropriate for production inspection where gage tolerance stack-up must be controlled. It is equally applicable to aerospace, automotive, and general manufacturing inspection routines involving sub-millimeter hole diameters.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for sub-millimeter bore inspection
• 10 microfinish surface for repeatable, low-wear contact with inspected bores
• Tool steel construction for durability in production inspection environments
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Overall length of 2.0000 inches accommodates standard gage handle setups

Compatibility

Designed for go inspection of 0.64 mm diameter bores and for use with micrometers, verniers, and other precision measuring devices per manufacturer application data.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in inspection environments. Clean the gage and the bore being inspected before use to prevent debris from affecting the reading. Store the gage in its protective case when not in use to avoid surface damage that could compromise tolerance accuracy. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.