Vermont Gage 112403930 Class Zz Minus Plug Pin Gage 3.93mm

Product Description

The VERMONT GAGE 112403930 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection on precision bores and holes. The gage measures a nominal diameter of 3.93 mm with a tolerance of 0.00508 mm, delivering the close control required for quality verification in manufacturing and machining environments. At 2 inches in overall length, it fits standard gage handle systems used in production and inspection settings. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements for calibrated inspection tooling. Machinists, quality technicians, and tool-and-die professionals are the primary users of this gage.

This pin gage is suited for NoGo inspection applications where a bore or hole must be confirmed as not oversized. It is also compatible with setup and verification tasks involving set micrometers, verniers, and other precision measuring devices. The Class ZZ designation identifies this as a general-purpose inspection grade appropriate for production-floor and incoming-inspection use. The steel construction with a 10 microfinish surface treatment ensures dimensional stability and resistance to wear under repeated insertion cycles in both light manufacturing and tool-room environments.

Key Features

• Class ZZ Minus tolerance grade for NoGo inspection applications
• 3.93 mm nominal diameter with 0.00508 mm tolerance for precise fit verification
• Steel construction with 10 microfinish surface coating for wear resistance and dimensional stability
• 2 inch overall length compatible with standard pin gage handle systems
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Suitable for use with set micrometers, verniers, and other precision measuring instruments

Compatibility

Designed for use in NoGo bore inspection setups and compatible with set micrometers, verniers, and other precision measuring devices as stated by the manufacturer. Fits standard pin gage handles accepting 3.93 mm diameter gages.

Installation Notes

Pin gages are handled and used by quality technicians and machinists in inspection environments. Store gages in a protective case away from moisture and contaminants to preserve the calibrated surface finish. Clean the gage and the bore with a lint-free cloth before each use to prevent debris from affecting the reading. Do not force the gage into a hole; apply only light, consistent hand pressure to avoid damaging the gage or the workpiece surface.