Vermont Gage 111143100 Class Zz Plus Plug Gage 0.431 in

Product Description

The VERMONT GAGE 111143100 is a Class ZZ Plus plug gage designed for precise go-inspection of bored, drilled, and reamed holes. Manufactured from tool steel, this plug gage measures a nominal diameter of 0.431 inches with a tolerance of 0.0002 inches. It carries a 10 microfinish surface finish for consistent, repeatable contact. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality-system documentation requirements. Dimensional compliance conforms to ASME B89.1. At an overall length of 2.0 inches, the gage is sized for bench and in-process inspection work in precision machining and metrology environments.

This plug gage is suited for quality control technicians, machinists, and metrology lab personnel working in manufacturing, toolroom, or inspection environments. It is used to verify hole diameters on machined components during production or final inspection. It also serves as a reference standard when setting micrometers, verniers, and other measuring devices to a known dimension. The 0.431-inch diameter makes it appropriate for applications where tight bore tolerances must be confirmed before assembly or final acceptance.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inches dimensional tolerance for high-accuracy go inspection
• 10 microfinish surface for consistent gage-to-workpiece contact and reduced wear
• Tool steel construction for durability in production and inspection environments
• Includes Certificate of Accuracy with NIST traceability for quality-system compliance
• Conforms to ASME B89.1 dimensional standards
• Overall length of 2.0 inches for convenient hand-held or bench use

Compatibility

Designed as an OEM-style go plug gage for inspecting 0.431-inch nominal diameter bores, and for use as a setting standard with micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists; no power source or fasteners are required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Never force a plug gage into a hole — go gages should enter under their own weight or with light hand pressure only. Store with the Certificate of Accuracy for traceability documentation.