Vermont Gage 112409090 Class Zz Minus Plug Pin Gage 9.09mm

Product Description

The VERMONT GAGE 112409090 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore diameters in precision inspection work. With a nominal measurement diameter of 9.09 mm and a tolerance of 0.00508 mm, this gage provides the tight dimensional control required for NoGo inspection applications. The 10 microfinish surface coating supports consistent, repeatable contact with the workpiece. At 2 inches in overall length, it is sized for standard handheld use. Each unit ships with a Certificate of Accuracy traceable to NIST standards, supporting quality documentation requirements in calibration-conscious facilities.

This plug pin gage is intended for NoGo inspection tasks where confirming that a bore or hole does not accept an oversized pin is critical to part acceptance. It is also suited for setting and checking micrometers, verniers, and other measuring devices that require a traceable reference standard. Typical users include quality control technicians, metrology lab personnel, and machinists performing in-process or final inspection on precision-machined components across manufacturing, tooling, and industrial maintenance environments.

Key Features

• Class ZZ Minus tolerance designation for NoGo inspection applications
• Nominal measurement diameter of 9.09 mm with 0.00508 mm tolerance
• Steel construction with 10 microfinish surface coating for consistent gage contact
• 2-inch overall length for standard handheld inspection use
• Includes Certificate of Accuracy with NIST traceability for documentation and compliance
• Suitable for setting micrometers, verniers, and comparable measuring instruments

Compatibility

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

Installation Notes

Plug pin gages are handled and used by quality control technicians and metrology personnel rather than installed in a mechanical system. Store the gage in its protective case when not in use to prevent surface damage. Clean the gage surface and the workpiece bore before use to avoid measurement errors caused by debris or contamination. Periodically verify the gage against its NIST-traceable certificate as part of a formal calibration interval program.