Vermont Gage 912102300 Class Zz Plus Plug Gage 2.3 Mm

Product Description

The VERMONT GAGE 912102300 is a Class ZZ Plus plug gage designed for precise go inspection of small-diameter bores and holes. It measures 2.3 mm in diameter with a tolerance of 0.005 mm (0.00508 mm actual), making it suitable for tight-tolerance quality control work. Constructed from tool steel with a black oxide finish, the gage provides durability and corrosion resistance in shop environments. Each unit ships with a Certificate of Accuracy with NIST traceability, supporting documentation requirements in calibrated inspection programs. This gage is used by machinists, quality technicians, and metrology professionals who require reliable, repeatable go-inspection results on precision-machined components.

This plug gage is suited for go inspection in manufacturing, machine shop, and quality assurance applications. It is compatible with use alongside micrometers, vernier calipers, and other measuring devices as a reference or verification standard. Typical applications include checking bore diameters on turned, drilled, or reamed parts in both production and job-shop environments. The 2.0-inch overall length provides adequate handling for standard pin-gage use in benchtop inspection setups.

Key Features

• Class ZZ Plus tolerance classification for go inspection applications
• 2.3 mm diameter with 0.005 mm tolerance for tight-tolerance bore verification
• Tool steel construction with black oxide finish for wear and corrosion resistance
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Meets ASME B89.1 standards for dimensional gaging
• 2.0-inch overall length for standard pin-gage handling

Compatibility

Designed for use in go inspection of 2.3 mm diameter bores and as a reference standard alongside micrometers, verniers, and other precision measuring devices per ASME B89.1.

Installation Notes

Plug gages of this type are handled by quality technicians and machinists during inspection operations — no power tools or mechanical installation is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel body. Do not force the gage into a bore; go gages should pass through a conforming hole under their own weight or with light hand pressure only. Store in a protective case away from temperature extremes to maintain calibration integrity.