Vermont Gage 112403430 Class Zz Minus Plug Pin Gage 3.43 Mm

Product Description

The VERMONT GAGE 112403430 is a Class ZZ minus plug pin gage machined from steel and used to verify bore diameters in precision inspection applications. This single-pin gage measures 3.43 mm in diameter and carries a tolerance of 0.00508 mm, making it suitable for close-tolerance go/no-go inspection routines. At 2 inches in overall length, the gage fits standard pin gage handles and collets. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming dimensional compliance out of the box. Machinists, quality technicians, and tool-room inspectors use this gage as part of incoming inspection, in-process checks, and final part acceptance routines.

Class ZZ minus plug gages are the standard toolroom grade for no-go inspection. This gage is intended for use as a no-go member when checking bores, holes, and other internal features against a minimum or maximum acceptable limit. It is also compatible with setting micrometers, verniers, and other comparative measuring devices that require a known reference diameter. Typical applications include production-floor quality checks and calibration setups in light manufacturing and precision machining environments.

Key Features

• Class ZZ minus tolerance rating for no-go inspection use
• 3.43 mm measurement diameter with 0.00508 mm tolerance
• Steel construction with a 10 microfinish surface coating for consistent gage wear and accurate readings
• 2-inch overall length compatible with standard pin gage handles and collets
• Includes Certificate of Accuracy with NIST traceability
• Suitable for setting micrometers, verniers, and other precision measuring devices

Compatibility

Designed for use as a no-go plug gage in standard pin gage handle systems and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring a 3.43 mm reference diameter.

Installation Notes

Pin gages are handled and used by quality technicians and tool-room personnel. Clean the gage and the mating surface before each use to prevent contamination from affecting measurement accuracy. Store the gage in a protective case away from temperature extremes to preserve dimensional stability. Do not force the gage into a bore; light hand pressure is the correct technique for all plug gage inspections.