Vermont Gage 111137700 Class Zz Plus Plug Gage 0.377 in

Product Description

The VERMONT GAGE 111137700 is a Class ZZ Plus plug gage machined from tool steel and designed for precision dimensional inspection. With a measurement diameter of 0.377 inches and a tolerance of 0.0002 inches, this gage delivers the accuracy required for go inspection work on production floors, toolrooms, and quality labs. The 10 microfinish surface treatment ensures consistent contact and extended service life. Each unit ships with a Certificate of Accuracy that includes NIST traceability, meeting ASME B89.1 standards. Machinists, quality technicians, and tool and die professionals rely on this type of plug gage for fast, repeatable attribute inspection.

This plug gage is suited for go inspection applications where confirming that a bore or hole falls within the minimum acceptable limit is required. It is also used to set and verify micrometers, verniers, and other dimensional measuring devices. The 2.0-inch overall length provides a comfortable, secure grip during single-handed inspection. Typical environments include precision machining shops, aerospace and automotive part inspection, and any facility maintaining tight bore tolerances on high-volume production runs.

Key Features

• Measurement diameter of 0.377 inches with a 0.0002-inch Class ZZ Plus tolerance
• 10 microfinish surface for accurate, repeatable contact on bore walls
• Tool steel construction for hardness and long-term wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards
• 2.0-inch overall length for controlled single-hand use

Compatibility

Designed for go inspection of bores and holes at 0.377 inches diameter, and for use in setting micrometers, verniers, and other precision measuring devices per ASME B89.1 requirements.

Installation Notes

Plug gages of this type are handled by quality technicians and machinists and require no permanent installation. Before use, clean the gage and the bore to be inspected to remove chips, oil, and debris that could affect the reading. Store the gage in a protective case away from other tooling to prevent surface damage. Do not force the gage into an undersized bore, as this will damage the precision ground surface and void traceability.