Vermont Gage 112301290 Class Zz Plus Plug Gage 1.29mm

Product Description

The VERMONT GAGE 112301290 is a Class ZZ Plus plug gage machined from tool steel for precise go inspection of small-diameter bores and holes. It measures 1.29 mm in diameter with a tolerance of 0.00508 mm, making it suitable for high-accuracy dimensional verification in production and quality-control environments. The gage features a 10 microfinish surface coating that reduces wear on the gage and the workpiece during repeated insertions. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements for ISO and AS9100 quality systems. Metrology technicians, tool-and-die makers, and machining inspectors are the primary users of this type of precision gage.

This plug gage is used in applications requiring go inspection of drilled, reamed, or bored holes at the 1.29 mm nominal diameter. It is also suited for setting and verifying micrometers, verniers, and other measuring devices. Typical installation environments include machine shops, inspection labs, and manufacturing cells where tight bore tolerances must be confirmed before parts advance in production. The Class ZZ Plus designation indicates a tighter tolerance class appropriate for more demanding inspection requirements than standard Class ZZ gages.

Key Features

• 1.29 mm nominal diameter with 0.00508 mm tolerance for precise go inspection
• Class ZZ Plus tolerance class for demanding dimensional verification
• Tool steel construction for durability and resistance to wear
• 10 microfinish surface for smooth, repeatable gage insertions
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of bores and holes at 1.29 mm nominal diameter, and for setting and verifying micrometers, verniers, and other measuring devices per the stated application data.

Installation Notes

Plug gages are handled and stored by metrology personnel following standard gage care practices. Clean the gage and bore surfaces before use to prevent debris from affecting readings or damaging the finish. Store the gage in its protective case when not in use to avoid contact damage. Calibration intervals should follow your facility quality plan and ASME B89.1 guidelines.