Vermont Gage 112301950 Class Zz Plus Plug Gage 1.95mm

Product Description

The VERMONT GAGE 112301950 is a Class ZZ Plus plug gage machined from tool steel and designed for precise dimensional inspection of small-diameter bores. The gage measures 1.95 mm in diameter with a tolerance of 0.005 mm, making it suitable for applications that demand close-tolerance verification. It carries a 10 microfinish surface finish on the gaging member for consistent, repeatable contact. An overall length of 2.0 inches supports easy handling during bench or in-process inspection. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Quality technicians, toolroom machinists, and precision metrology personnel are the typical end users.

This plug gage is used in go inspection routines to confirm that a drilled, reamed, or bored hole meets its minimum acceptable diameter. It is suited for setting micrometers, verifying verniers, and calibrating other measuring devices where a 1.95 mm reference standard is required. The tool steel construction holds up to repeated use in production and inspection environments, including light manufacturing, aerospace component work, and precision machining shops. It is equally appropriate for incoming inspection benches and on-floor gage stations.

Key Features

• Class ZZ Plus tolerance of 0.005 mm supports precise go inspection of small bores
• Tool steel construction provides durability and dimensional stability under repeated use
• 10 microfinish surface on gaging member ensures consistent, low-friction contact
• Includes Certificate of Accuracy with NIST traceability, conforming to ASME B89.1
• Overall length of 2.0 inches for secure, comfortable handling during inspection
• Compatible with go inspection routines as well as micrometer and vernier setting applications

Compatibility

Designed for use in go inspection applications and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a 1.95 mm diameter reference.

Installation Notes

Plug gages are handled and stored by metrology or quality personnel, not installed in the field. Keep the gaging surface clean and lightly oiled when not in use to prevent corrosion on the tool steel. Do not force the gage into an undersized hole, as this will damage the precision-ground surface and invalidate calibration. Recertify or re-check the gage periodically per your facility quality plan and applicable ASME B89.1 intervals.