Vermont Gage 112304150 Class Zz Plus Plug Gage 4.15 Mm

Product Description

The VERMONT GAGE 112304150 is a Class ZZ Plus plug gage machined from tool steel and finished to a 10 microfinish surface quality. It measures 4.15 mm in diameter with a tolerance of 0.00508 mm, making it suitable for precise go inspection tasks in production and quality control environments. The overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy that includes NIST traceability, confirming dimensional conformance to ASME B89.1 standards. Machinists, quality technicians, and metrologists use this gage to verify bore and hole dimensions in manufactured components.

This plug gage is used in applications requiring accurate go inspection of small-diameter bores, including verification work with set micrometers, verniers, and other precision measuring devices. It fits into production floor inspection routines as well as tool room calibration workflows. The 4.15 mm diameter makes it appropriate for precision-machined components where tight hole tolerances are critical. The included NIST-traceable certificate supports quality management documentation requirements in ISO and similar compliance environments.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for precise go inspection
• 10 microfinish surface for consistent, repeatable gage contact
• Tool steel construction for durability under regular production use
• Conforms to ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability
• Compact 2.0000-inch overall length suits tight-clearance inspection setups

Compatibility

Designed for go inspection of 4.15 mm diameter bores and for use with set micrometers, verniers, and other precision measuring devices as an OEM-style Class ZZ Plus plug gage replacement or new installation.

Installation Notes

Plug gages of this type are handled and used by quality technicians and metrologists in inspection environments. Keep the gage clean and lightly oiled when not in use to prevent corrosion of the tool steel. Do not force the gage into a bore — excessive insertion force can damage both the gage and the workpiece. Store in the provided case or a padded gage holder to protect the 10 microfinish surface.