Vermont Gage 111343650 Class Zz Plus Plug Gage

Product Description

The VERMONT GAGE 111343650 is a Class ZZ Plus cylindrical plug gage used to verify bore diameters in GO inspection applications. Machined from tool steel and finished to a 10 microfinish surface, it measures a nominal diameter of 0.4365 inches with a tolerance of 0.0002 inches. The 111343650 ships with a Certificate of Accuracy carrying NIST traceability, confirming it meets ASME B89.1 standards. Machinists, quality technicians, and tool-room professionals use this gage when checking hole sizes on production parts, setting micrometers, or calibrating verniers and other precision measuring devices.

This plug gage is suited for use in inspection rooms, machine shops, and manufacturing lines where tight dimensional control is required. Its 0.4365-inch nominal diameter makes it a direct GO gage for that specific bore size. It is also used as a reference standard when setting or verifying the calibration of comparators, micrometers, and verniers. The overall length of 2.0 inches provides adequate handling clearance in most gage-block setups and hand-held inspection routines.

Key Features

• Class ZZ Plus tolerance grade: 0.0002 inches, suitable for GO inspection of finished bores
• 10 microfinish surface on the gage diameter minimizes wear and ensures consistent contact
• Tool steel construction provides hardness and dimensional stability under repeated use
• Includes Certificate of Accuracy with NIST traceability per ASME B89.1
• Overall length of 2.0 inches suits standard hand-held and bench-mounted inspection setups

Compatibility

Designed as an OEM-style GO inspection plug gage for verifying 0.4365-inch nominal bore diameters; also used to set micrometers, verniers, and other precision measuring devices in tool-room and production inspection environments.

Installation Notes

This gage is installed and used by quality technicians and machinists in inspection or production environments. Before use, clean the gage and bore thoroughly to remove chips, oil, and debris that could affect the reading. Never force the plug gage into an undersized bore, as this can damage the gage land and introduce measurement error. Store in a protective case away from temperature extremes to maintain dimensional stability and NIST-traceable calibration.