Vermont Gage 112102440 Class Zz Plus Plug Gage 2.44 Mm

Product Description

The VERMONT GAGE 112102440 is a Class ZZ Plus cylindrical plug gage designed for precision dimensional inspection of hole diameters. Built from tool steel with a 10 microfinish surface, this gage measures 2.44 mm in diameter and holds a tolerance of 0.00508 mm. It is used to verify whether a bored, drilled, or reamed hole falls within acceptable dimensional limits on the Go end of a Go/No-Go inspection routine. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 standards. Machinists, quality control technicians, and metrology professionals rely on this gage for reliable, repeatable inspection results in production and toolroom environments.

This plug gage is suited for Go inspection applications across manufacturing, machining, and quality assurance settings. It is compatible with use alongside set micrometers, verniers, and other precision measuring devices for reference and calibration tasks. The 2.44 mm diameter makes it applicable to small-bore inspection work in precision components, jigs, fixtures, and assemblies where tight tolerances are critical. It is equally appropriate in job shop and high-volume production environments where consistent hole verification is required before part acceptance.

Key Features

• Class ZZ Plus tolerance classification — 0.00508 mm tolerance for reliable Go inspection
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent, low-friction gage entry
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• Compact 2.0 inch overall length suits tight-clearance inspection setups

Compatibility

Designed for Go inspection use with set micrometers, verniers, and other precision measuring devices per ASME B89.1. Suitable as an OEM-style plug gage replacement or new toolroom addition for 2.44 mm diameter hole inspection applications.

Installation Notes

Plug gages of this type are handled and applied by machinists and quality technicians — no power tools or electrical lockout is required. Clean the gage and the bore being inspected before use to avoid debris-induced measurement error. Do not force the gage into an undersize hole, as this can damage the gage surface finish and compromise accuracy. Store the gage in its case and handle with clean, dry gloves or a lint-free cloth to prevent corrosion and surface contamination.