Vermont Gage 111123900 Class Zz Plus Plug Gage 0.239 in

Product Description

The VERMONT GAGE 111123900 is a Class ZZ Plus plug gage designed for precise go inspection of bored, drilled, or reamed holes at a nominal diameter of 0.239 inches. Manufactured from tool steel with a 10 microfinish surface, this gage delivers a tolerance of 0.0002 inches, meeting ASME B89.1 standards. It ships with a Certificate of Accuracy with NIST Traceability, making it suitable for quality-controlled environments. Machinists, toolmakers, and quality control technicians use this gage to verify that hole dimensions fall within allowable limits during production and inspection workflows.

This plug gage is used in go inspection applications where hole acceptance at the low-limit condition must be confirmed. It is also compatible with setup and verification routines for set micrometers, verniers, and other measuring devices. Typical install scenarios include incoming inspection, in-process gauging on machined components, and final inspection in precision manufacturing environments. The compact 2.0-inch overall length suits bench use and hand-held inspection on the shop floor.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for accurate go inspection
• Tool steel construction for wear resistance and long service life
• 10 microfinish surface reduces friction and protects workpiece holes during inspection
• Meets ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST Traceability for quality and calibration documentation
• Compact 2.0-inch overall length suited for bench and hand-held use

Compatibility

Designed for go inspection of holes at 0.239 inches nominal diameter. Also compatible for use as a setting standard with set micrometers, verniers, and other precision measuring devices per manufacturer application data.

Installation Notes

This gage is handled and used by machinists, toolroom personnel, and quality control inspectors — no power-down or mechanical installation is required. Clean both the gage and the workpiece hole before use to prevent debris from affecting readings or damaging the gage surface. Do not force the gage through a hole; proper go inspection relies on the gage entering under its own weight or light hand pressure. Store the gage in its protective case when not in use to preserve the calibrated surface finish and dimensional accuracy.