Vermont Gage 112304270 Class Zz Plus Plug Gage 4.27mm

Product Description

The VERMONT GAGE 112304270 is a Class ZZ Plus plug gage designed for precise bore and hole diameter verification in quality control and inspection environments. Machined from tool steel and finished to a 10 microfinish surface quality, this gage delivers consistent, reliable measurements in tight-tolerance applications. It carries a 0.005 mm tolerance rating and ships with a Certificate of Accuracy traceable to NIST standards, making it suitable for calibration documentation requirements. Metrologists, quality technicians, and tool room professionals rely on this type of gage for fast, repeatable go-style inspection of small-diameter features.

This plug gage is sized at 4.27 mm diameter and is intended for go inspection use in production and inspection settings. It works alongside micrometers, verniers, and other measuring devices as part of a complete inspection process. The overall length of 2.0 inches suits standard gage handle systems used in bench and in-process inspection workflows. Typical applications include verifying machined bores, drilled holes, and reamed features in both job shop and manufacturing floor environments.

Key Features

• Class ZZ Plus tolerance rating at 0.005 mm for precise go inspection
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface finish for accurate, repeatable contact measurement
• Includes Certificate of Accuracy with NIST traceability for documentation compliance
• Conforms to ASME B89.1 standard
• Compatible with standard gage handle systems for easy field use

Compatibility

Designed for use as a go inspection gage and as a setting standard for micrometers, verniers, and other measuring devices. Fits standard plug gage handle systems sized for small-diameter gages.

Installation Notes

Plug gages are handled and used by quality technicians, metrologists, and tool room personnel. Clean the gage and the bore being inspected before use to prevent measurement error caused by debris or oil buildup. Store in a protective case away from magnetic fields and temperature extremes to preserve dimensional accuracy. Never force the gage into a bore, as this can damage both the gage and the workpiece surface.