Vermont Gage 112406810 Class Zz Minus Plug Pin Gage 6.81mm

Product Description

The VERMONT GAGE 112406810 is a Class ZZ Minus plug pin gage machined from steel and used to verify that a bored or reamed hole does not exceed its maximum allowable size. At 6.81 mm in diameter with a tolerance of 0.00508 mm, this gage is a NoGo inspection tool - it should not enter a conforming hole. The overall length is 2 inches, making it easy to handle for bench or in-process inspection. A Certificate of Accuracy with NIST Traceability is included, supporting quality documentation requirements in production and inspection environments. Machinists, quality technicians, and tool-and-die professionals are the primary users.

This plug pin gage is suited for dimensional inspection in manufacturing, machining, and precision measurement settings. It is used alongside set micrometers, verniers, and other measuring devices to confirm hole size compliance during production runs or incoming inspection. The Class ZZ tolerance class is appropriate for general-purpose inspection where moderate gage accuracy is required. Typical applications include checking drilled, reamed, or bored holes in metalworking and fabrication shops.

Key Features

• Class ZZ Minus tolerance designation for NoGo hole inspection
• 6.81 mm diameter with 0.00508 mm tolerance for precise go/no-go verification
• Steel construction with 10 microfinish surface coating for durability and accurate measurement contact
• 2-inch overall length for easy single-hand handling at the inspection bench
• Includes Certificate of Accuracy with NIST Traceability for quality system compliance
• Compatible with set micrometers, verniers, and standard measuring device calibration workflows

Compatibility

Designed for use with set micrometers, verniers, and other measuring devices in NoGo hole inspection applications. Suitable for general-purpose dimensional inspection in metalworking and precision machining environments.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists - no power tools or electrical shutoff is required. Store the gage in its protective case when not in use to prevent surface damage that could affect measurement accuracy. Clean the gage and the part bore before use to remove chips, oil, or debris that could cause false readings. Do not force the gage into a hole; controlled hand pressure is the correct technique for go/no-go inspection.