Vermont Gage 112103280 Class Zz Plus Plug Gage 3.28mm

Product Description

The VERMONT GAGE 112103280 is a Class ZZ Plus plug gage designed for dimensional inspection of bored, reamed, and drilled holes. It measures a nominal diameter of 3.28 mm with a tolerance of 0.00508 mm, making it suitable for Go inspection applications where tight dimensional control is required. The gage is machined from tool steel and finished to a 10 microfinish surface. It ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Machinists, quality technicians, and tool room professionals use this type of gage to verify hole diameters quickly and reliably during in-process or final inspection.

This plug gage is used in manufacturing and inspection environments where Go-type attribute gaging is performed on small-diameter holes. Typical applications include verifying holes in machined components, castings, and fabricated parts. It is also used to set and verify micrometers, verniers, and other measuring devices. The 3.28 mm diameter and 2.0000 inch overall length make it well suited for benchtop inspection work in machine shops, production facilities, and quality laboratories.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for precise Go inspection
• 3.28 mm nominal diameter, 2.0000 inch overall length
• 10 microfinish surface for consistent, repeatable gaging contact
• Tool steel construction for durability and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 dimensional gage standards

Compatibility

Designed for Go inspection of 3.28 mm diameter holes and for setting micrometers, verniers, and other measuring devices requiring a traceable reference standard.

Installation Notes

This gage is handled and used by quality technicians and tool room personnel — no mechanical installation is required. Store the gage in its protective case when not in use to prevent damage to the gaging surface. Clean the gage and the workpiece bore before use to avoid false readings caused by debris or residual cutting fluid. Do not force the gage into undersized holes, as this can damage the finish and alter the dimensional accuracy.