Vermont Gage 112112200 Class Zz Plus Plug Gage 12.2mm

Product Description

The VERMONT GAGE 112112200 is a Class ZZ Plus plug gage designed for dimensional inspection of bored holes and machined features. It measures 12.2 mm in diameter with a tolerance of 0.00508 mm, making it suitable for precision go-inspection work where tight dimensional control is required. Manufactured from tool steel and finished to a 10 microfinish surface, it provides consistent, repeatable contact with the workpiece. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST. Machinists, quality technicians, and metrology professionals use this gage in production inspection environments.

This plug gage is used in go inspection applications where verified hole diameter conformance is required before parts advance through a production process. It is also suitable for calibrating and verifying set micrometers, verniers, and other measuring devices. Typical environments include machine shops, manufacturing floors, and quality control labs handling precision metal components. The 12.2 mm diameter targets mid-range metric bore sizes common in general machined parts and assemblies.

Key Features

• Class ZZ Plus tolerance classification for go-inspection precision
• 12.2 mm diameter with 0.00508 mm tolerance
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent gage contact
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of 12.2 mm diameter bored holes and machined features. Also suitable for setting and verifying micrometers, verniers, and other hand measuring devices that require a traceable reference standard.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in inspection settings. Clean the gage and the workpiece bore before use to remove chips, coolant, and debris that could affect readings or damage the gage surface. Store the gage in its protective case when not in use to prevent nicks and corrosion. Do not force the gage into a bore; apply only light, consistent hand pressure consistent with standard metrology practice.