Vermont Gage 112303590 Class Zz Plus Plug Gage 3.59mm

Product Description

The VERMONT GAGE 112303590 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 microfinish surface coating, this plug gage delivers reliable Go inspection performance in production and quality-control environments. It measures a nominal diameter of 3.59 mm with a tolerance of 0.005 mm, conforming to ASME B89.1 standards. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for applications that require documented measurement traceability. Machinists, quality technicians, and metrologists use this gage as part of incoming inspection, in-process checks, and final part acceptance routines.

This plug gage is used in manufacturing facilities, machine shops, and quality labs where tight-tolerance bore inspection is required. It is compatible with Go inspection workflows and can be used alongside set micrometers, verniers, and other precision measuring devices. The 3.59 mm diameter targets small-bore applications common in precision machined components. Its compact overall length of 2.0 inches makes it easy to handle in both bench and floor inspection settings. It is appropriate for both light production use and calibration lab environments where Class ZZ Plus tolerance grades are specified.

Key Features

• Class ZZ Plus tolerance grade with 0.005 mm tolerance for high-accuracy Go inspection
• Tool steel construction for durability and wear resistance in repeated inspection use
• 10 microfinish surface coating minimizes surface drag and improves gage repeatability
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST-traceable calibration documentation
• Compact 2.0-inch overall length suitable for small-bore and bench inspection use

Compatibility

Designed for Go inspection applications and compatible for use with set micrometers, verniers, and other precision measuring devices as stated by the manufacturer.

Installation Notes

Plug gages are handled and used by quality technicians and machinists and require no permanent installation. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the bore being inspected before use to ensure accurate measurement readings. Do not force the gage into a bore; if resistance is felt during a Go check, the feature is out of tolerance and the gage should be withdrawn without applying additional pressure.