Vermont Gage 111122700 Class Zz Plus Plug Gage 0.227 in

Product Description

The VERMONT GAGE 111122700 is a Class ZZ Plus plug gage designed for precision dimensional inspection of holes and bores with a nominal diameter of 0.227 inches. Manufactured from tool steel, this gage carries a tolerance of 0.0002 inches and a 10 microfinish surface finish, meeting the exacting requirements of ASME B89.1. It is used by machinists, quality control technicians, and metrology professionals to verify that a workpiece feature meets its specified dimensional limits. Each unit ships with a Certificate of Accuracy backed by NIST traceability, confirming that the gage has been verified against national measurement standards.

This plug gage is suited for go inspection applications in precision machining and manufacturing environments, both job shop and production floor settings. It is also used to calibrate and verify the accuracy of set micrometers, verniers, and other measuring devices. The compact 2.0-inch overall length makes it easy to handle and position in standard bench inspection setups. Typical users include quality inspectors, tool room technicians, and CNC machinists performing first-article or in-process inspection tasks.

Key Features

• 0.227-inch nominal diameter with a tight 0.0002-inch tolerance for reliable go inspection
• 10 microfinish surface finish minimizes wear and ensures consistent gauge contact
• Tool steel construction provides durability and dimensional stability under repeated use
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Compact 2.0-inch overall length suits bench and portable inspection setups

Compatibility

Designed for go inspection of features at 0.227 inches nominal diameter; also suited for setting and verifying set micrometers, verniers, and other precision measuring devices requiring a Class ZZ Plus reference standard.

Installation Notes

Plug gages are handled and used by quality control technicians and tool room personnel — no power tools or utilities need to be shut down prior to use. Store the gage in its protective case when not in use to prevent nicks or corrosion that could affect accuracy. Clean the gage and the workpiece bore with a lint-free cloth before inspection to remove chips, coolant, or debris. Apply only light hand pressure when inserting the gage; never force it into a bore, as this can damage both the gage and the workpiece surface.