Vermont Gage 112105120 Class Zz Plus Plug Gage 5.12mm

Product Description

The VERMONT GAGE 112105120 is a Class ZZ Plus plug gage designed for dimensional inspection of precision bored holes and machined features. It measures 5.12 mm in diameter with a tolerance of 0.005 mm, making it suitable for applications where tight dimensional control is required. The gage body is machined from tool steel and features a 10 microfinish surface, which supports consistent and repeatable contact during measurement. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy that includes NIST traceability, meeting ASME B89.1 standards. Machinists, toolroom technicians, and quality control inspectors use this type of plug gage for go inspection tasks.

This plug gage is used in manufacturing and inspection environments where bore size verification is part of process control or final quality inspection. It is suited for go inspection of holes produced by drilling, reaming, or boring operations. It is also used to set and verify micrometers, verniers, and other measuring devices. Typical users include production machinists, quality lab technicians, and tool and die makers working in both job shop and production environments.

Key Features

• 5.12 mm diameter with 0.005 mm Class ZZ Plus tolerance for tight dimensional control
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent, repeatable gage contact
• Overall length of 2.0000 inches for standard handle compatibility
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Designed for go inspection of 5.12 mm diameter bored or reamed holes; also suitable for setting micrometers, verniers, and other precision measuring devices in toolroom and production inspection applications.

Installation Notes

Plug gages should be handled and stored in accordance with ASME B89.1 guidelines to preserve surface finish and dimensional integrity. Clean the gage and the part bore with a lint-free cloth before use to prevent contamination from affecting the measurement. Do not force the gage into a bore; apply light, consistent hand pressure only. Store the gage in its case away from tools and materials that could cause impact damage or corrosion.