Vermont Gage 112305150 Class Zz Plus Plug Gage 5.15mm

Product Description

The VERMONT GAGE 112305150 is a Class ZZ Plus plug gage used to verify bore and hole diameters during precision inspection work. Machined from tool steel and finished to a 10 microfinish surface, it delivers the dimensional accuracy required for go-type inspection tasks. The gage measures 5.15 mm in diameter with a tolerance of 0.005 mm, making it suitable for close-tolerance work. Each unit ships with a Certificate of Accuracy traceable to NIST standards, providing the documentation needed for calibration records and quality audits. Overall length is 2.0000 inches. Machinists, quality technicians, and metrologists working in production or inspection environments are the primary users.

This plug gage is designed for go inspection applications, confirming that a hole or bore meets its minimum size requirement. It is also used to set and verify micrometers, verniers, and other measuring devices. Typical use environments include machine shops, manufacturing floors, quality control labs, and tool rooms where tight dimensional tolerances are maintained. The 5.15 mm diameter makes it applicable to small-bore inspection tasks across a variety of precision machined components.

Key Features

• Class ZZ Plus tolerance grade with 0.005 mm tolerance for precision go inspection
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface for accurate, repeatable contact with bore surfaces
• Includes Certificate of Accuracy with NIST traceability for documentation compliance
• Conforms to ASME B89.1 standards
• 2.0000-inch overall length for standard gage handle compatibility

Compatibility

Designed as an OEM-style go plug gage for use in standard gage handle systems accepting 5.15 mm diameter gage members. Suitable for setting and checking micrometers, verniers, and other measuring devices as specified by the manufacturer.

Installation Notes

Plug gages are handled and used by qualified inspection or metrology personnel. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the bore being inspected before use to ensure accurate readings. Do not force the gage into an undersized bore, as this can damage the gage surface and compromise measurement accuracy.