Vermont Gage 112105080 Class Zz Plus Plug Gage 5.08mm

Product Description

The VERMONT GAGE 112105080 is a Class ZZ Plus plug gage designed for go inspection of bored, drilled, and reamed holes. Manufactured from tool steel with a 10 microfinish surface coating, this gage checks that a hole or internal feature meets its minimum size requirement. The nominal diameter is 5.08 mm with a tolerance of 0.005 mm, and the overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for documented quality-control workflows. Calibration labs, machining shops, and inspection departments use this type of gage for high-repeatability dimensional verification.

This plug gage is used in go inspection applications where a machined or fabricated hole must fall within a defined minimum diameter. Typical environments include production floor inspection stations, tool rooms, and metrology labs. It is also suited for setting and verifying micrometers, verniers, and other measuring devices requiring a traceable reference. The compact 2-inch overall length makes it easy to handle in bench or in-line inspection setups.

Key Features

• Class ZZ Plus accuracy for go inspection of internal features
• 5.08 mm nominal diameter with 0.005 mm tolerance
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for smooth, consistent contact
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of holes and internal features at 5.08 mm nominal diameter. Also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable plug reference.

Installation Notes

Plug gages are handled and applied by machinists, quality technicians, and metrologists - no power tools or utilities need to be shut down prior to use. Clean the gage and the workpiece bore before each inspection to prevent contamination from affecting the reading. Do not force the gage; excessive insertion force can damage the gage surface or the part. Store in the provided case when not in use to protect the microfinish and maintain calibration integrity.