Vermont Gage 111158900 Class Zz Plus Plug Gage 0.589 in

Product Description

The VERMONT GAGE 111158900 is a Class ZZ Plus plug gage used for precise go inspection of bored, drilled, and reamed holes. Manufactured from tool steel, this plug gage measures a nominal diameter of 0.589 inches with a tolerance of 0.0002 inches and a 10 microfinish surface finish. The overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1. Machinists, quality control technicians, and tool room professionals use this gage to verify whether a hole meets its specified dimensional limits during production and inspection workflows.

This plug gage is suited for go inspection tasks in manufacturing environments where tight hole-diameter verification is required. It is also appropriate for setting and verifying micrometers, verniers, and other measuring devices where a known reference standard is needed. The Class ZZ Plus designation indicates a higher accuracy class than standard ZZ, making it well suited for inspection departments, calibration labs, and tool rooms that require traceable reference standards. Compatible with typical gage handle systems used in standard plug gage applications.

Key Features

• 0.589 inches nominal diameter with 0.0002 inches tolerance for precise go inspection
• 10 microfinish surface finish for consistent, repeatable contact with the workpiece
• Tool steel construction for durability and wear resistance in production environments
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards
• Compatible with standard plug gage handles for ergonomic use

Compatibility

Designed for go inspection applications and for use as a reference standard when setting micrometers, verniers, and other measuring devices. Fits standard plug gage handle systems appropriate for the 0.589 inch diameter class.

Installation Notes

This gage is installed and used by machinists and quality control technicians in tool rooms and on the production floor. Before use, clean both the gage and the workpiece bore to remove chips, oil, and debris that could affect measurement accuracy. Do not force the gage into the bore; apply light, consistent hand pressure only. Store the gage in its protective case when not in use to prevent surface damage and maintain calibration integrity.