Vermont Gage 111280400 Class Zz Minus Plug Pin Gage 0.8040 in

Product Description

The VERMONT GAGE 111280400 is a Class ZZ Minus plug pin gage machined to a diameter of 0.8040 inches with a tolerance of 0.0002 inches. The part measures 2 inches in overall length and is manufactured from steel. It is used in NoGo inspection applications to verify that a bored hole or internal feature does not exceed the maximum allowable size. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in calibrated inspection environments. Machinists, quality control technicians, and toolroom personnel are the primary users of this type of gage.

This plug pin gage is used in precision inspection work on shop floors, in quality labs, and during incoming inspection processes. It is designed for NoGo inspection, meaning it confirms that a feature is not oversized. It can also be used to set micrometers, verniers, and other measuring devices to a known diameter reference. The 0.8040-inch diameter targets bores and holes produced to that nominal size in both production and prototype machining environments.

Key Features

• Class ZZ Minus tolerance of 0.0002 inches for reliable NoGo inspection
• 0.8040-inch measurement diameter for precise bore verification
• 2-inch overall length suits standard pin gage handles and holders
• Steel construction provides durability in production inspection environments
• Includes Certificate of Accuracy with NIST Traceability for documented calibration compliance
• Suitable for setting micrometers, verniers, and other precision measuring instruments

Compatibility

Designed as an OEM-style replacement and standard-fit plug pin gage for use with pin gage handles, gage blocks, and inspection fixtures that accept 0.8040-inch diameter Class ZZ minus gages.

Installation Notes

This gage is handled and used by quality control technicians and machinists following standard metrology practices. Store the gage in its protective case when not in use to prevent wear to the ground surface. Clean the gage pin and the bore being checked before use to avoid false readings from chips or debris. Do not force the pin into a bore; if resistance is felt during a NoGo check, the feature is within tolerance and no additional force should be applied.