Vermont Gage 112403690 Class Zz Minus Plug Pin Gage 3.69mm

Product Description

The VERMONT GAGE 112403690 is a Class ZZ Minus plug pin gage designed for precision dimensional inspection. This steel pin gage measures 3.69 mm in diameter with a tolerance of 0.00508 mm, making it suitable for NoGo inspection applications where close-tolerance verification is required. The overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST standards, confirming the gage meets Class ZZ dimensional requirements. Machinists, quality control technicians, and metrology professionals use this type of gage to verify that a hole or bore does not exceed the maximum allowable size.

This pin gage is used in manufacturing and inspection environments where precise bore or hole sizing must be confirmed. Typical applications include NoGo inspection checks, setting micrometers, calibrating verniers, and validating other measuring devices. The 10 microfinish surface coating supports consistent contact and repeatable readings across production and quality assurance workflows. It is appropriate for use in both job shop and production floor settings where Class ZZ tolerance verification is part of standard inspection protocol.

Key Features

• Class ZZ Minus tolerance grade — 0.00508 mm tolerance for close-tolerance NoGo inspection
• 3.69 mm measurement diameter in steel construction
• 10 microfinish surface coating for consistent gage contact
• Overall length of 2 inches for standard pin gage handling
• Includes Certificate of Accuracy with NIST traceability
• Suitable for setting micrometers, verniers, and other precision measuring devices

Compatibility

Designed for use in standard pin gage inspection applications including NoGo bore verification, micrometer setting, and vernier calibration where a 3.69 mm Class ZZ Minus pin gage is specified.

Installation Notes

Pin gages are handled by quality control and metrology technicians and do not require mechanical installation. Store the gage in its protective case when not in use to prevent damage to the precision-ground surface. Clean contact surfaces before use to avoid measurement error from debris or contamination. Do not force the gage into a bore — improper insertion can damage both the gage and the workpiece.