Vermont Gage 111185900 Class Zz Plus Plug Gage 0.859 in

Product Description

The VERMONT GAGE 111185900 is a Class ZZ Plus plug gage used to verify bore and hole diameters to tight tolerances in precision measurement applications. Machined from tool steel, it holds a tolerance of 0.0002 inches and features a 10 microinch surface finish. With an overall length of 2.0 inches and a measurement diameter of 0.859 inches, this plug gage delivers consistent, repeatable results. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for environments where documented traceability is required. Machinists, quality technicians, and metrologists are the typical end users.

This plug gage is designed for Go inspection use, confirming that a hole or bore is at or above the minimum acceptable diameter. It is also compatible with setup and calibration of set micrometers, verniers, and other precision measuring devices. Typical install scenarios include incoming inspection stations, machine shop quality checks, and calibration labs in both production and job-shop environments where ASME B89.1 conformance is required.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for precise Go inspection
• 10 microinch surface finish for accurate, consistent gauge contact
• Tool steel construction for durability in production environments
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for Go inspection of holes and bores at 0.859 inches diameter. Also used to set and verify set micrometers, verniers, and other precision measuring devices per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power source or mechanical installation is required. Store the gage in its case when not in use to prevent damage to the ground surface. Clean bore and gage surfaces before use to avoid false readings caused by debris or contaminants. Handle with clean cotton gloves or a clean cloth to prevent corrosion from skin oils.