Vermont Gage 112209940 Class Zz Minus Plug Pin Gage 9.94mm

Product Description

The VERMONT GAGE 112209940 is a Class ZZ Minus plug pin gage machined from steel and used for NoGo inspection of precision bored holes and machined features. The gage measures 9.94 mm in diameter with a tolerance of 0.00508 mm, making it suitable for close-tolerance dimensional verification in production and quality-control environments. At 2 inches overall length, it is sized for handheld use at the bench or on the floor. A Certificate of Accuracy with NIST traceability is included, supporting documented inspection processes. Machinists, toolmakers, and quality technicians use this type of gage to confirm that a hole or bore has not been cut oversize.

This gage is designed for NoGo inspection applications where confirming an upper-limit rejection condition is required. It is also suitable for setting micrometers, verniers, and other measuring devices that require a traceable reference standard. Typical use cases include incoming inspection, in-process machining verification, and final quality audits in precision manufacturing. The 10 microfinish surface coating helps maintain dimensional stability and protects the gage surface from wear during repeated insertions.

Key Features

• Class ZZ Minus tolerance designation for NoGo inspection service
• 9.94 mm diameter with 0.00508 mm tolerance for close-tolerance work
• Steel construction with 10 microfinish surface for wear resistance and dimensional stability
• 2 inches overall length sized for comfortable handheld use
• Includes Certificate of Accuracy with NIST traceability for documented quality programs
• Suitable for setting micrometers, verniers, and other precision measuring devices

Compatibility

Designed for use as a NoGo plug gage in standard handheld pin gage applications, and as a reference standard for setting micrometers, verniers, and comparable measuring instruments requiring a traceable 9.94 mm reference.

Installation Notes

Pin gages of this type are handled and used by machinists and quality technicians - no installation tools or fasteners are required. Keep the gage clean and lightly oiled when not in use to prevent corrosion and preserve the surface finish. Do not force the gage into a bore; a NoGo gage should not pass fully into a conforming hole, and applying force risks damage to both the gage and the workpiece. Store in a protective case away from other metal tools to avoid nicking the precision surface.