Vermont Gage 111121100 Class Zz Plus Plug Gage 0.211 in

Product Description

The VERMONT GAGE 111121100 is a Class ZZ Plus plug gage designed for precision go inspection of bored, drilled, and reamed holes. Manufactured from tool steel, this plug gage measures a nominal diameter of 0.211 inches with a tolerance of 0.0002 inches, making it suitable for verifying hole dimensions in tight-tolerance machining and metrology applications. The 10 microfinish surface ensures consistent, repeatable contact. Machinists, quality technicians, and tool-room professionals use this gage as a reliable go-member check during in-process and final inspection workflows. Each unit ships with a Certificate of Accuracy with NIST traceability, meeting ASME B89.1 standards.

This plug gage is used in quality control and metrology environments where hole diameter verification is required. Typical applications include setting micrometers, verifying verniers, and calibrating other measuring devices. It is suited for both production floor inspection and tool-room calibration in manufacturing environments handling precision machined components. The small diameter range and tight tolerance class make it appropriate for high-precision aerospace, automotive, and general industrial machining operations where hole acceptance criteria must be documented and traceable.

Key Features

• Class ZZ Plus tolerance rating provides high-accuracy go inspection performance
• 0.211 inch nominal diameter with 0.0002 inch tolerance for tight-tolerance hole verification
• 10 microfinish surface for consistent, low-wear contact with workpiece
• Tool steel construction for durability in production and inspection environments
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 standard for plain plug gages

Compatibility

Designed for use as a go inspection gage for holes with a 0.211 inch nominal diameter. Also suitable for setting micrometers, verniers, and other precision measuring devices requiring a traceable reference standard of this diameter.

Installation Notes

Plug gages are handled and applied by quality technicians and machinists in inspection settings. Clean the gage and the workpiece bore before use to remove chips, oil, or debris that could affect measurement accuracy. Store the gage in its protective case when not in use to prevent surface damage. Do not force the gage into an undersized hole, as this can damage the gage member and invalidate the calibration.