Vermont Gage 111131800 Class Zz Plus Plug Gage 0.318 in

Product Description

The VERMONT GAGE 111131800 is a Class ZZ Plus plug gage designed to measure bore and hole diameters with precision tolerances. Manufactured from tool steel with a 10 microfinish surface, this gage holds a diameter of measurement of 0.318 inches and a tolerance of 0.0002 inches. It meets ASME B89.1 standards and ships with a Certificate of Accuracy with NIST traceability. At 2.0 inches overall length, it is compact and suited for bench use or field inspection. Machinists, quality technicians, and dimensional inspectors use this type of gage for go inspection checks on production parts and precision bores.

This plug gage is intended for go inspection applications where confirming that a bore or hole meets minimum dimensional requirements is critical. It is also well suited for setting and verifying micrometers, verniers, and other measuring devices. Typical use environments include machine shops, manufacturing facilities, and quality control labs working to ASME B89.1 dimensional standards. The compact overall length of 2.0 inches makes it practical for a wide range of inspection setups on both benchtop and in-process workflows.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inch tolerance for reliable go inspection
• 10 microfinish surface for smooth, consistent contact with the workpiece bore
• Tool steel construction for durability and dimensional stability
• Meets ASME B89.1 standards for dimensional gaging accuracy
• Includes Certificate of Accuracy with NIST traceability
• Compact 2.0 inch overall length suitable for bench and field inspection

Compatibility

Designed for use as a go plug gage for bore and hole inspection at 0.318 inches nominal diameter. Also suitable for setting micrometers, verniers, and other dimensional measuring devices requiring a precision reference.

Installation Notes

This gage is handled and used by quality technicians and machinists performing dimensional inspection. Clean the gage and the workpiece bore before use to prevent debris from affecting the measurement. Store the gage in its protective case and avoid contact with other metal tooling to preserve the microfinish surface. Periodic recalibration against NIST-traceable standards is recommended to maintain measurement integrity.