Vermont Gage 111292300 Class Zz Minus Plug Pin Gage 0.9230 in

Product Description

The VERMONT GAGE 111292300 is a Class ZZ minus plug pin gage machined to a 0.9230-inch nominal diameter for NoGo inspection work. It is a single-ended steel pin gage used to verify that a bore or hole does not exceed its maximum allowable dimension. At 2 inches in overall length, it fits standard pin gage handles and is well suited to bench-level dimensional inspection in machine shops, quality labs, and production environments. Each unit ships with a Certificate of Accuracy with NIST traceability, confirming the tolerance is held to within 0.0002 inch on the minus side of the nominal diameter.

This gage is appropriate for checking bored holes, reamed features, and machined ports in both production and incoming inspection settings. It is commonly used alongside micrometers, verniers, and other precision measuring devices to establish a go/no-go decision point. The Class ZZ tolerance class is recognized for general-purpose inspection and is a standard choice when close-tolerance Class Z or ZZ gages are required by inspection plans or drawing callouts. Suitable for use in job shops, OEM manufacturing cells, and calibration labs handling steel or non-ferrous workpieces.

Key Features

• Nominal diameter of 0.9230 inches for precise NoGo bore inspection
• Class ZZ minus tolerance held to 0.0002 inch below nominal
• Steel construction for durability and dimensional stability
• 10 micro finish on the gage surface for consistent seating and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Overall length of 2 inches for compatibility with standard pin gage handles

Compatibility

Designed for use with standard pin gage handles and compatible with set micrometers, verniers, and other dimensional measuring devices requiring a 0.9230-inch Class ZZ minus reference pin.

Installation Notes

Pin gages should be handled and stored by metrology or quality inspection personnel following standard gage-care practices. Clean the gage pin and the workpiece bore before use to remove chips, oil, or debris that could affect measurement accuracy. Never force a plug gage into a hole; light hand pressure is sufficient for a properly sized bore. Store pin gages in a protective case away from temperature extremes to preserve dimensional accuracy and surface finish.