Vermont Gage 112308750 Class Zz Plus Plug Gage 8.75 Mm

Product Description

The VERMONT GAGE 112308750 is a Class ZZ Plus plug gage machined from tool steel and used to verify inside diameter tolerances in precision inspection work. It has an 8.75 mm nominal diameter with a tolerance of 0.005 mm (0.00508 mm actual) and a 10 microinch surface finish. The overall length is 2.0000 inches. This gage is designed for go-inspection applications, meaning it confirms a hole is at or above the minimum acceptable size. Machinists, quality technicians, and tool room personnel rely on this type of gage for fast, repeatable attribute inspection at the machine or inspection bench.

This plug gage is suited for use in manufacturing environments where inside diameter verification is required on machined bores, drilled holes, and reamed features. It is also used to set and verify micrometers, verniers, and other measuring devices. The Class ZZ Plus tolerance class makes it appropriate for production inspection where general-purpose accuracy is needed. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documented quality systems and calibration records.

Key Features

• 8.75 mm nominal diameter with 0.005 mm tolerance for precise go-inspection
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for durability in production inspection environments
• 2.0000 inch overall length for easy handling at the inspection bench
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Conforms to ASME B89.1 standards

Compatibility

Designed for use in go-inspection applications and for setting micrometers, verniers, and other measuring devices requiring a precision reference diameter of 8.75 mm.

Installation Notes

Plug gages are handled and used by machinists and quality inspection personnel, not installed in a system. Always store the gage in its case when not in use to protect the lapped surface from damage. Do not force the gage into a bore; if resistance is felt, the hole is undersize. Clean the gage and bore with a lint-free cloth before gauging to prevent false readings from contamination or chips.