Vermont Gage 111143700 Class Zz Plus Plug Gage 0.437 in

Product Description

The VERMONT GAGE 111143700 is a Class ZZ Plus plug gage designed for precise go inspection work in dimensional quality control applications. Ground from tool steel and finished to a 10 microfinish surface, this gage measures a nominal diameter of 0.437 inches with a tolerance of 0.0002 inches. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in calibrated measurement environments. It is manufactured to ASME B89.1 standards. Machinists, quality technicians, and metrologists use this type of gage to verify bore and hole dimensions in production and inspection settings.

This plug gage is used in go inspection applications to confirm that bored or drilled features meet minimum diameter requirements. It is also referenced when setting micrometers, verniers, and other measuring devices requiring a calibrated master. Suitable for job shop, toolroom, and production floor use where traceable dimensional verification is required. The 0.437-inch diameter makes it appropriate for fastener clearance holes, precision bores, and similar features in that size range.

Key Features

• Nominal measurement diameter of 0.437 inches for go inspection
• Tolerance of 0.0002 inches per ASME B89.1
• 10 microfinish surface for consistent, low-wear contact
• Tool steel construction for durability in production environments
• Includes Certificate of Accuracy with NIST traceability
• Overall length of 2.0 inches for standard handle compatibility

Compatibility

Designed as an OEM-style go plug gage for use with standard gage handle sets and compatible with setting micrometers, verniers, and other measuring devices requiring a calibrated 0.437-inch master reference.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power tools or mechanical installation is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Do not force the gage into a bore — go gages should enter a conforming feature under their own weight or with light hand pressure only. Store in a protected case away from temperature extremes to maintain calibration integrity.