Vermont Gage 112105040 Class Zz Plus Plug Gage 5.04mm

Product Description

The VERMONT GAGE 112105040 is a Class ZZ Plus cylindrical plug gage designed for dimensional inspection of bored holes, machined bores, and precision-tolerance features. Built from tool steel with a 10 microfinish surface, this gage checks whether a hole meets its minimum acceptable size in Go inspection workflows. It measures 5.04 mm in diameter with a tolerance of 0.005 mm, making it suitable for tight-tolerance quality control applications. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST standards, meeting ASME B89.1 requirements for gage calibration and documentation.

This plug gage is used in manufacturing, machining, and metrology environments where Go inspection is required on small-diameter bores. It is compatible with standard gage handle sets and integrates into inspection routines alongside micrometers, verniers, and other calibrated measuring devices. Typical users include machinists, quality control technicians, and tool room personnel working to ASME or ISO dimensional tolerances in production or incoming inspection settings.

Key Features

• Class ZZ Plus tolerance grade for Go inspection of 5.04 mm diameter bores
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for accurate, repeatable contact with the bore
• 0.005 mm tolerance meets ASME B89.1 gage standards
• Includes Certificate of Accuracy with NIST traceability for documentation and calibration records
• Fits standard gage handles used with micrometer and vernier inspection setups

Compatibility

Designed for Go inspection use with standard plug gage handle sets and compatible with set micrometers, verniers, and other measuring devices as noted in product specifications. Suitable for any application requiring ASME B89.1-compliant Class ZZ Plus plug gaging at 5.04 mm diameter.

Installation Notes

Plug gages should be handled by quality control or metrology personnel following established gage care procedures. Store in a clean, dry environment and avoid dropping or contact with abrasive surfaces to protect the precision-ground finish. Prior to use, verify the gage is at thermal equilibrium with the workpiece to prevent measurement error caused by thermal expansion. Reference ASME B89.1 and applicable shop standards for proper Go gage inspection technique and acceptance criteria.