Vermont Gage 111100000 Class Zz Plus Plug Gage 1 in

Product Description

The VERMONT GAGE 111100000 is a Class ZZ Plus plug gage designed for dimensional inspection of bored holes, machined features, and precision-fit components. Measuring 1.0000 inches in diameter, this go-style plug gage is manufactured from tool steel and holds a tolerance of 0.0002 inches, making it suitable for high-accuracy inspection tasks in production and quality-control environments. The working surface carries a 10 microinch finish, which supports consistent, repeatable contact during gauging. Each unit ships with a Certificate of Accuracy that includes NIST traceability, meeting the documentation requirements common in ISO- and AS9100-regulated shops. Machinists, quality technicians, and toolroom personnel are the primary users of this gage.

This plug gage is used to verify whether a hole or bore meets the minimum acceptable size limit in a go-inspection workflow. Typical applications include checking drilled, reamed, or bored holes on machined parts in both job-shop and production-floor settings. It is also used to calibrate and verify the accuracy of setting micrometers, verniers, and other measuring devices. The gage conforms to ASME B89.1 standards, which defines dimensional and tolerance requirements for plain plug gages used in American manufacturing environments.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for precise go-inspection gauging
• 1.0000 inch measurement diameter machined from tool steel for durability
• 10 microinch surface finish for consistent, repeatable contact
• Meets ASME B89.1 standards for plain plug gages
• Includes Certificate of Accuracy with NIST traceability for documentation and compliance
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed as a go-inspection plug gage for use with bored holes and precision-machined features requiring a 1.0000 inch nominal diameter check. Also used as a setting standard for micrometers, verniers, and comparable measuring instruments.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in inspection or toolroom settings. Clean the gage and the bore being checked before use to prevent contamination from affecting the reading. Do not force the gage into a hole; go gages should enter under light hand pressure only, and forcing can damage both the gage and the workpiece. Store the gage in its case away from other tools to protect the precision ground surface from nicks and wear.