Vermont Gage 112205580 Class Zz Minus Plug Pin Gage 5.58 Mm

Product Description

The VERMONT GAGE 112205580 is a Class ZZ Minus plug pin gage machined from steel for dimensional inspection work. It measures 5.58 mm in diameter and is ground to a minus tolerance of 0.00508 mm, making it the NoGo member in a go/no-go gage set. The 2-inch overall length gives inspectors a consistent, repeatable grip during single-hand checking operations. Each unit ships with a Certificate of Accuracy traceable to NIST standards, confirming it meets Class ZZ tolerance requirements straight out of the package. Machinists, quality technicians, and tool-room personnel use this gage to verify that bored holes, drilled features, or other cylindrical details do not exceed the specified maximum limit of size.

This pin gage is suited for inspection stations in manufacturing, job-shop tool rooms, and precision assembly environments. It is used to check hole diameters in metalworking, plastic machining, and similar close-tolerance fabrication processes. The minus-tolerance grind identifies it as a NoGo gage, meaning the pin should not enter a conforming hole. It also serves as a setting standard for micrometers, verniers, and other measuring devices that require a known reference diameter for calibration or zeroing routines.

Key Features

• Class ZZ minus tolerance of 0.00508 mm for NoGo inspection duty
• 5.58 mm nominal diameter, 2-inch overall length
• Steel construction with a 10 microfinish surface for consistent contact
• NIST-traceable Certificate of Accuracy included with each unit
• Usable as a setting reference for micrometers, verniers, and similar measuring devices

Compatibility

Designed for use in go/no-go inspection sets and as a setting reference for micrometers, verniers, and other measuring devices requiring a calibrated 5.58 mm diameter reference standard.

Installation Notes

Plug pin gages are handled by quality technicians and tool-room personnel; no power shutoff is required for use. Store the gage in a protective case away from moisture and contaminants to preserve the ground surface finish. Clean the gage and the feature being checked before each inspection pass to prevent debris from causing false readings. Periodically re-verify the gage against its Certificate of Accuracy documentation as part of your facility measurement-system control program.