Vermont Gage 911119500 Class Zz Plus Plug Gage 0.195 in

Product Description

The VERMONT GAGE 911119500 is a Class ZZ Plus plug gage machined from tool steel and finished with a black oxide coating. It measures 0.195 inches in diameter with a tolerance of 0.0002 inches, making it suited for go inspection tasks where dimensional accuracy is critical. Each unit ships with a Certificate of Accuracy backed by NIST traceability, confirming conformance to ASME B89.1 standards. Machinists, quality technicians, and tool-room professionals use this gage to verify hole diameters on production parts and to set or confirm the calibration of micrometers, verniers, and other precision measuring devices. Overall length is 2.0 inches.

This plug gage is applied in precision inspection environments including machine shops, manufacturing floors, and quality-control labs. It is designed for go inspection duty, confirming that a bored, drilled, or reamed hole falls within the specified minimum diameter. It also serves as a reference standard for setting micrometers, vernier calipers, and similar measuring instruments. The black oxide finish reduces surface corrosion and minimizes light glare during use. Typical users include CNC machinists, quality engineers, and tool-and-die technicians working to tight dimensional tolerances in light manufacturing or aerospace-tier inspection workflows.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inch tolerance for reliable go inspection
• Tool steel construction for wear resistance and dimensional stability
• Black oxide finish reduces corrosion and surface glare
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional standards
• 2.0 inch overall length provides comfortable single-hand handling

Compatibility

Designed for use as a go inspection gage and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring a 0.195 inch diameter reference.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Before use, verify the gage surface is free of burrs, debris, or damage that could affect measurement accuracy. Store the gage in its protective case when not in use to preserve the finish and dimensional integrity. Calibration and inspection work should be performed in a temperature-controlled environment in accordance with ASME B89.1 guidelines.