Vermont Gage 112311950 Class Zz Plus Plug Gage 11.95mm

Product Description

The VERMONT GAGE 112311950 is a Class ZZ Plus plug gage designed for precision bore and hole inspection in machine shops, tool rooms, and quality control environments. It measures 11.95 mm in diameter with a tolerance of 0.005 mm, making it suitable for go inspection applications where tight dimensional verification is required. The gage is manufactured from tool steel and features a 10 microfinish surface coating that supports accurate, repeatable contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Machinists, metrologists, and quality technicians use this gage as a reliable go/no-go reference tool.

This plug gage is used in production inspection setups where hole diameters must be verified against specification. It is well-suited for use alongside micrometers, verniers, and other precision measuring devices as a calibration or verification reference. Typical applications include incoming inspection, in-process quality checks, and setup verification on machined components. The compact overall length of 2.0 inches allows it to be used in confined or shallow bore applications without interference from surrounding workpiece geometry.

Key Features

• Class ZZ Plus tolerance grade with 0.005 mm tolerance for precise go inspection
• 11.95 mm diameter in tool steel construction for durability and wear resistance
• 10 microfinish surface provides consistent contact and accurate readings
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Overall length of 2.0 inches supports use in compact bore geometries

Compatibility

Designed for use as a go inspection plug gage compatible with set micrometers, verniers, and other precision measuring devices requiring a Class ZZ Plus reference standard at 11.95 mm diameter.

Installation Notes

This gage is handled and deployed by machinists, metrologists, and quality control technicians. Before use, clean the gage and bore contact surfaces to remove chips, oil, or debris that could affect measurement accuracy. Do not force the gage into a bore; apply light, steady hand pressure only. Store the gage in its case when not in use to protect the finished surface and prevent corrosion.