Vermont Gage 111330250 Class Zz Plus Plug Gage 0.3025 in

Product Description

The VERMONT GAGE 111330250 is a Class ZZ Plus plug gage used to verify bore and hole dimensions in precision machining and quality control applications. Manufactured from tool steel, this gage measures a nominal diameter of 0.3025 inches with a tolerance of 0.0002 inches and a surface finish of 10 microinch. It is designed for go inspection checks and is compatible with setting micrometers, verniers, and other measuring devices. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements of most shop and lab quality systems. Licensed machinists, toolroom technicians, and quality inspectors are the typical users.

This plug gage is suited for production floor inspection, incoming inspection, and gage calibration workflows in both job shop and manufacturing environments. It applies wherever a 0.3025-inch nominal bore must be verified for conformance to print tolerances. The 2.0-inch overall length provides comfortable one-hand handling during repetitive go inspection tasks. Compliance with ASME B89.1 makes it appropriate for use in quality systems that reference national dimensional metrology standards.

Key Features

• Class ZZ Plus tolerance grade: 0.0002 inches for precise go inspection
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for hardness and wear resistance
• Meets ASME B89.1 dimensional standard
• Includes Certificate of Accuracy with NIST traceability
• Overall length of 2.0 inches for comfortable handling

Compatibility

Designed for go inspection of 0.3025-inch nominal bores and for setting micrometers, verniers, and other precision measuring devices where a Class ZZ Plus reference is required.

Installation Notes

Plug gages are handled and applied by machinists, toolroom technicians, and quality inspectors. Clean the gage and the bore thoroughly before use to prevent measurement errors caused by debris or oil film. Store the gage in its protective case when not in use to preserve the surface finish and dimensional integrity. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.