Vermont Gage 112318130 Class Zz Plus Plug Gage 18.13mm

Product Description

The VERMONT GAGE 112318130 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored holes and machined features. Built from tool steel with a 10 micro finish, this plug gage carries a diameter of 18.13 mm and a tolerance of 0.005 mm, making it suitable for Go inspection applications where tight measurement accuracy is required. Each unit ships with a Certificate of Accuracy with NIST Traceability, confirming conformance to ASME B89.1 standards. Machinists, quality control technicians, and metrology lab personnel use this gage as part of incoming and in-process inspection routines.

This plug gage is suited for use in manufacturing and machine shop environments where verifying hole diameter to close tolerance is critical. It is compatible with Go inspection workflows and can be used alongside set micrometers, verniers, and other measuring devices for process control and calibration verification. Typical applications include production floor inspection of precision-bored components in metalworking, automotive, aerospace, and general manufacturing operations.

Key Features

• Class ZZ Plus tolerance class with 0.005 mm tolerance for precise Go inspection
• 18.13 mm inspection diameter machined from tool steel
• 10 micro surface finish for consistent, repeatable gage contact
• Includes Certificate of Accuracy with NIST Traceability
• Conforms to ASME B89.1 standards for plain plug gages
• Compatible with set micrometers, verniers, and other measuring devices

Compatibility

Designed for Go inspection use with set micrometers, verniers, and other measuring devices per the application data provided. Suitable for any inspection process requiring a Class ZZ Plus plug gage at 18.13 mm diameter.

Installation Notes

Plug gages are handled and used by quality technicians or machinists — no power tools or utilities need to be de-energized for gage use. Store the gage in a protective case and handle with clean cotton gloves to prevent corrosion from skin oils. Clean the gage and the workpiece bore before use to ensure accurate measurement. Do not force the gage into a bore; if resistance is felt, stop and inspect both the gage and the workpiece.