Vermont Gage 911220500 Class Zz Minus Plug Pin Gage

Product Description

The VERMONT GAGE 911220500 is a Class ZZ Minus plug pin gage used to verify bore diameters and hole tolerances in precision inspection work. This single-ended pin gage measures 0.2050 inches in diameter with a tolerance of 0.0002 inches, making it suitable for NoGo inspection applications. The steel body carries a black oxide finish that resists corrosion and reduces glare during use. Each unit ships with a Certificate of Accuracy traceable to NIST standards. Machinists, quality control technicians, and metrology professionals use this gage to confirm that a feature does not exceed its maximum material condition limit.

This plug pin gage is intended for NoGo inspection routines where confirming an upper-limit condition is required. It also serves as a reference standard when setting micrometers, verniers, and other measuring devices. At 2 inches overall length, it fits comfortably in standard gage holders and pin gage sets. Its compact size suits both shop-floor and inspection-room environments across manufacturing, aerospace, automotive, and general machining operations.

Key Features

• Class ZZ Minus tolerance for NoGo inspection applications
• 0.2050 inch diameter with a 0.0002 inch tolerance
• Steel construction with black oxide finish for corrosion resistance
• Includes Certificate of Accuracy with NIST Traceability
• 2 inch overall length fits standard pin gage holders

Compatibility

Designed for use in NoGo bore inspection routines and as a setting reference for micrometers, verniers, and other precision measuring devices.

Installation Notes

Pin gages are handled and applied by machinists and quality control technicians rather than installed permanently. Clean the gage and the feature being inspected before use to prevent debris from affecting the measurement. Apply light, consistent hand pressure only — never force a plug gage into a bore. Store in a protective case away from other tools to avoid nicking the gage surface.