Vermont Gage 112108800 Class Zz Plus Plug Gage 8.8 Mm

Product Description

The VERMONT GAGE 112108800 is a Class ZZ Plus cylindrical plug gage machined from tool steel for go-type bore inspection. It measures 8.80 mm in diameter and holds a tolerance of 0.00508 mm, making it appropriate for verifying that a bored or drilled hole meets minimum acceptable size. The working surface is finished to a 10 microfinish rating, which reduces gauge wear and ensures consistent contact during use. A Certificate of Accuracy with NIST traceability is included, supporting documentation requirements in quality-controlled manufacturing and inspection environments. Dimensional inspection technicians and precision machinists are the primary users of this tool.

This plug gage is used in go inspection applications where a bore must be confirmed to have reached its minimum allowable diameter before a part advances in the production process. It is also suitable for setting and verifying micrometers, verniers, and other measuring devices. Typical environments include machine shops, tool rooms, production floors, and metrology labs working to ASME B89.1 standards. The compact overall length of 2.0000 inches makes it easy to handle in bench or in-line inspection setups.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for precision go inspection
• 8.80 mm nominal diameter, tool steel construction for durability and wear resistance
• 10 microfinish surface finish reduces gauge wear and improves measurement repeatability
• Meets ASME B89.1 dimensional standards for plug gages
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Compact 2.0000 inch overall length suitable for bench and in-line inspection use

Compatibility

Designed for use in go inspection applications and for setting micrometers, verniers, and other measuring devices requiring an 8.80 mm reference diameter in conformance with ASME B89.1.

Installation Notes

Plug gages are handled and used by dimensional inspection technicians and quality control personnel, not installed in mechanical systems. Keep the gage clean and lightly oiled when stored to prevent corrosion on the tool steel surface. Do not force the gage into a bore; excessive insertion force can damage both the gage and the workpiece. Calibration intervals should follow the shop quality plan and applicable metrology standards.