Vermont Gage 111290400 Class Zz Minus Plug Pin Gage 0.9040 in

Product Description

The VERMONT GAGE 111290400 is a Class ZZ Minus plug pin gage machined to a 0.9040-inch measurement diameter with a tolerance of 0.0002 inches. It is used to verify that a bored or reamed hole does not exceed its maximum allowable size, functioning as the NoGo member in a go/no-go inspection routine. The overall length is 2 inches, and the gage is manufactured from steel. Each unit ships with a Certificate of Accuracy that includes NIST traceability, making it suitable for use in documented quality control processes. Licensed metrologists, machinists, and quality technicians are the primary users of this type of gage.

This plug pin gage is applied in precision inspection of machined bores, holes, and cylindrical features where dimensional acceptance criteria must be confirmed. It is compatible with NoGo inspection setups and can also be used to set or verify micrometers, verniers, and other measuring devices requiring a traceable reference standard. Typical environments include machine shops, manufacturing production lines, and quality assurance labs handling close-tolerance work in both light manufacturing and heavy industrial settings.

Key Features

• Class ZZ Minus tolerance specification for NoGo inspection applications
• Measurement diameter of 0.9040 inches with a tolerance of 0.0002 inches
• Steel construction for durability and dimensional stability
• 10 micro surface coating and finish for consistent gage contact
• Includes Certificate of Accuracy with NIST traceability for documented quality systems
• Overall length of 2 inches for standard gage handle compatibility

Compatibility

Designed for use in NoGo bore inspection setups and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring a traceable plug gage reference.

Installation Notes

Plug pin gages are handled and used by machinists and quality technicians; no permanent installation is required. Clean the gage and the bore being checked before use to prevent debris from affecting the measurement result. Avoid dropping or striking the gage, as impact can alter the precision ground diameter. Store the gage in its protective case and apply a light coat of rust-preventive oil when not in use to maintain surface condition.