Vermont Gage 111197200 Class Zz Plus Plug Gage 0.972 in

Product Description

The VERMONT GAGE 111197200 is a Class ZZ Plus plug gage used to verify bore and hole diameters to tight tolerances in precision inspection environments. Manufactured from tool steel, this go-style gage checks that a feature meets its minimum acceptable size condition. It carries a tolerance of 0.0002 inches and a 10 microfinish surface finish, making it suitable for high-accuracy dimensional checks on the shop floor or in a metrology lab. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming it meets ASME B89.1 standards. Machinists, quality technicians, and tool-and-die professionals rely on gages of this class for production inspection and calibration tasks.

This gage is used for go inspection of features with a nominal diameter of 0.972 inches. It is suited for checking bored holes, reamed passages, and machined features in both production and tool room environments. In addition to direct bore inspection, it is applicable for setting and verifying micrometers, verniers, and other dimensional measuring devices. Both job shop and high-volume manufacturing operations use Class ZZ Plus gages where consistent, repeatable dimensional verification is required.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for precision go inspection
• 10 microfinish surface finish for accurate, repeatable contact
• Tool steel construction for durability and wear resistance
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• Compatible with use on micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of 0.972-inch nominal diameter features, and for use with set micrometers, verniers, and other dimensional measuring devices as stated by the manufacturer.

Installation Notes

Plug gages are handled and deployed by quality technicians and machinists during inspection operations. Clean the gage and the part feature thoroughly before use to prevent false readings caused by debris or coolant residue. Do not force the gage into a bore; apply only light, consistent hand pressure to avoid scoring the gage or the workpiece. Store the gage in its case and away from temperature extremes to preserve calibration integrity.