Vermont Gage 112104240 Class Zz Plus Plug Gage 4.24mm

Product Description

The VERMONT GAGE 112104240 is a Class ZZ Plus plug gage machined from tool steel and designed for precision bore inspection in metrology and quality-control applications. The gage measures 4.24 mm in diameter with a tolerance of 0.00508 mm, making it suitable for go-inspection work where tight dimensional verification is required. The 10 microfinish surface finish supports repeatable contact with the workpiece. At 2.0 inches overall length, the gage is compact and easy to handle during bench or in-process inspection routines. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards.

This plug gage is intended for use in manufacturing, machine shops, and inspection labs where bore diameters must be verified to close tolerances. It is suited for go-inspection use with micrometers, verniers, and other measuring devices during setup verification or final part acceptance. Quality technicians, machinists, and metrology professionals working with small-diameter bores in the 4 mm range will find this gage appropriate for their dimensional inspection workflows.

Key Features

• Class ZZ Plus tolerance rating for go-inspection applications
• 4.24 mm diameter with 0.00508 mm tolerance for precise bore verification
• 10 microfinish surface for consistent and repeatable gage contact
• Tool steel construction for wear resistance and dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed as an OEM-style go-inspection plug gage for use with micrometers, verniers, and other measuring devices requiring a 4.24 mm diameter reference standard.

Installation Notes

Plug gages are used by quality technicians and machinists and require no permanent installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion and preserve the surface finish. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Store in a protective case away from temperature extremes to maintain dimensional accuracy.