Vermont Gage 112307470 Class Zz Plus Plug Gage 7.47mm

Product Description

The VERMONT GAGE 112307470 is a Class ZZ Plus plug gage machined from tool steel for go inspection of bored holes, machined bores, and threaded or plain openings requiring precise dimensional verification. The gage measures 7.47 mm in diameter with a tolerance of 0.00508 mm, making it suitable for applications where tight dimensional control is required. Overall length is 2.0000 inches. A 10 microfinish surface finish on the gage pin reduces wear and ensures repeatable contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Machinists, quality technicians, and tool room personnel use this gage as part of incoming inspection, in-process verification, or final QC routines.

This plug gage is used in precision manufacturing environments where go inspection is required to confirm that a bore or hole falls within the specified minimum material condition. Typical applications include verifying drilled, reamed, or bored holes in metal and composite components. It is also used to set and verify micrometers, verniers, and other measuring devices. The gage is appropriate for both production floor inspection and calibration lab use.

Key Features

• Class ZZ Plus tolerance for go inspection: 0.00508 mm
• 7.47 mm gage diameter for precise bore verification
• 10 microfinish surface finish for reduced wear and consistent contact
• Tool steel construction for durability in production environments
• Meets ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed for go inspection of bores and holes nominally sized at 7.47 mm, and for use in setting micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no installation tools are required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Never force the gage into an undersized bore, as this will damage both the gage and the workpiece. Store in the provided case or a padded gage holder away from abrasive surfaces to preserve the 10 microfinish.