Vermont Gage 112205500 Class Zz Minus Plug Pin Gage 5.50 Mm

Product Description

The VERMONT GAGE 112205500 is a Class ZZ minus plug pin gage designed for precise dimensional inspection at 5.50 mm diameter. This hardened steel pin gage is used to verify that a hole or bore does not exceed its maximum allowable size, making it a NoGo inspection tool in standard go/nogo gauging practice. The gage carries a tolerance of 0.00508 mm and comes with a Certificate of Accuracy with NIST traceability, confirming it meets the dimensional standards required for calibrated measurement work. Overall length is 2 inches. Machinists, quality control technicians, and calibration professionals are the primary users.

This pin gage is suited for production-floor and quality lab environments where bore and hole diameter conformance must be verified against tight tolerances. It is appropriate for use with micrometers, verniers, and other measuring devices during setup and inspection. The Class ZZ minus designation indicates the gage is undersized relative to nominal, which is the correct configuration for NoGo inspection applications. Typical use cases include incoming inspection, process control, and fixture verification in manufacturing and machining operations.

Key Features

• Class ZZ minus tolerance designation - correct configuration for NoGo hole inspection
• 0.00508 mm tolerance for precise dimensional conformance verification
• Steel construction with 10 microfinish surface coating for consistent contact and durability
• Includes Certificate of Accuracy with NIST traceability for calibrated inspection use
• Compact 2-inch overall length for easy handling in tight inspection setups

Compatibility

Designed for use in standard go/nogo plug gage inspection applications including use with micrometers, verniers, and other measuring devices. Compatible with inspection setups requiring a 5.50 mm Class ZZ minus pin gage per ANSI/ASME dimensional standards.

Installation Notes

Pin gages should be handled with clean, dry hands or lint-free gloves to prevent contamination of the precision surface. Store the gage in its protective case when not in use to avoid nicks or corrosion that could affect dimensional accuracy. Calibration intervals should follow your facility's quality management system and applicable metrology standards. No machining, grinding, or rework of the gage is permitted once it leaves the manufacturer.