Vermont Gage 112206580 Class Zz Minus Plug Pin Gage 6.58mm

Product Description

The VERMONT GAGE 112206580 is a Class ZZ minus plug pin gage ground to a 6.58 mm diameter for NoGo inspection applications. It carries a tolerance of 0.00508 mm and is manufactured from steel with a 10 microfinish surface coating. The gage ships with a Certificate of Accuracy traceable to NIST, making it suitable for documented quality-control workflows. Metrology technicians and quality engineers use this tool to verify that a bored or reamed hole does not exceed its maximum allowable size, serving as the rejection member in a go/nogo gage pair. Its compact 2-inch overall length fits standard gage handle systems.

This plug pin gage is designed for precision inspection environments where tight dimensional tolerances must be verified quickly and reliably. Typical applications include setting micrometers, vernier calipers, and other comparative measuring devices, as well as direct hole-acceptance testing on machined components. The Class ZZ designation indicates a general-purpose tolerance grade suited for production inspection of commercial-tolerance holes. It is appropriate for use in machine shops, quality labs, and manufacturing lines working with metric hole specifications near 6.58 mm.

Key Features

• Class ZZ minus tolerance grade - configured as the NoGo member for hole rejection
• 6.58 mm measurement diameter with 0.00508 mm tolerance for precise go/nogo decisions
• Steel construction with 10 microfinish surface for consistent gage contact and wear resistance
• Includes Certificate of Accuracy with NIST traceability for documented quality systems
• 2-inch overall length compatible with standard plug gage handles
• Suitable for setting micrometers, verniers, and other comparative measuring devices

Compatibility

Designed for use as a NoGo inspection gage for metric holes at 6.58 mm diameter. Also suitable for setting micrometers, vernier calipers, and other measuring devices requiring a certified reference diameter. Fits standard plug gage handles sized for the 6.58 mm diameter range.

Installation Notes

Plug pin gages are handled and used by metrology technicians and quality control personnel - no cutting tools or power equipment are required. Store the gage in its protective case when not in use and avoid dropping or contacting it with abrasive surfaces to protect the ground finish. Clean the gage and the hole being inspected before use to prevent false readings caused by chips or contamination. Periodic recalibration against a NIST-traceable standard is recommended to maintain measurement integrity.