Vermont Gage 112309730 Class Zz Plus Plug Gage 9.73mm

Product Description

The VERMONT GAGE 112309730 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored, reamed, or drilled holes. It measures 9.73 mm in diameter and holds a tolerance of 0.00508 mm, making it suitable for verifying hole conformance in precision manufacturing and quality-control environments. The 10 microfinish surface reduces wear on both the gage and the workpiece, extending service life in repetitive inspection cycles. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS9100 quality systems. Machinists, toolroom technicians, and quality inspectors are the primary users.

This plug gage is used in production and inspection settings where hole diameter must be verified against a go tolerance per ASME B89.1 standards. Typical applications include checking machined bores prior to assembly, calibrating and setting micrometers, verniers, and other measuring devices, and performing incoming or in-process quality checks in job shops, aerospace, automotive, and general manufacturing facilities.

Key Features

• Class ZZ Plus tolerance grade: 0.00508 mm tolerance for reliable go inspection
• 9.73 mm nominal diameter machined from tool steel for durability
• 10 microfinish surface finish minimizes wear during repeated use
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Suitable for setting micrometers, verniers, and other measuring instruments

Compatibility

Designed for go inspection of holes nominally sized at 9.73 mm; also suitable for setting and verifying micrometers, verniers, and comparable dimensional measuring devices in standard toolroom and quality-lab applications.

Installation Notes

Plug gages are handled and used by quality technicians and toolroom personnel; no power source or mechanical installation is required. Clean the gage and the workpiece bore before use to prevent debris from affecting measurement accuracy or damaging the gage surface. Store the gage in its case away from cutting fluids, magnets, and temperature extremes to preserve calibration. Re-verify traceability documentation at intervals consistent with your facility quality management system.