Vermont Gage 112309410 Class Zz Plus Plug Gage 9.41mm

Product Description

The VERMONT GAGE 112309410 is a Class ZZ Plus cylindrical plug gage manufactured from tool steel for dimensional inspection of bored holes and machined features. Designed to verify whether an inside diameter meets minimum acceptable dimensions, this gage is used in go/no-go inspection routines on the shop floor and in quality-control environments. It measures 9.41 mm in diameter with a tolerance of 0.00508 mm and features a 10 microfinish surface, ensuring precise, repeatable contact with the workpiece. The 2.0000-inch overall length suits standard handle configurations used by machinists and quality technicians. Each unit ships with a Certificate of Accuracy traceable to NIST.

This plug gage is suited for go inspection of holes, bores, and machined openings requiring close tolerance verification. It is compatible with standard gage handle sets and integrates into inspection workflows alongside set micrometers, verniers, and other precision measuring devices. Typical users include machinists, QC inspectors, and toolroom technicians working in precision manufacturing, metal fabrication, and production environments where dimensional compliance to ASME B89.1 standards is required.

Key Features

• Class ZZ Plus tolerance classification for go inspection applications
• 9.41 mm diameter with 0.00508 mm tolerance for precise bore verification
• 10 microfinish surface finish for consistent, repeatable contact
• Tool steel construction for hardness and wear resistance in production use
• Compliant with ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed for use with standard cylindrical plug gage handle sets and compatible with set micrometers, verniers, and other precision measuring devices as noted in manufacturer specifications.

Installation Notes

Plug gages are handled and used by machinists and quality control inspectors and require no permanent installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surfaces. Always allow the gage and workpiece to reach the same ambient temperature before inspection to avoid thermal expansion error. Store the gage in its case away from abrasive materials to preserve the microfinish surface.