Vermont Gage 111112900 Class Zz Plus Plug Gage 0.129 in

Product Description

The VERMONT GAGE 111112900 is a Class ZZ Plus plug gage used to verify bore and hole dimensions in precision inspection work. Manufactured from tool steel, this gage checks whether a feature meets its specified size within a tolerance of 0.0002 inches. The measuring surface carries a 10 microfinish for consistent, repeatable contact. Overall length is 2.0 inches, and the measuring diameter is 0.129 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in quality management systems. This gage is calibrated to ASME B89.1 standards and is suited for use in tool rooms, inspection labs, and on-floor quality checkpoints.

This plug gage is used in go inspection applications to confirm that a hole or bore falls within its acceptable dimensional range. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference diameter. Typical users include machinists, quality control inspectors, and metrology technicians working in metalworking, aerospace, automotive, and general manufacturing environments. The 0.129-inch diameter suits small-bore inspection tasks common in precision component production.

Key Features

• Class ZZ Plus tolerance class — 0.0002 inches tolerance for accurate go inspection
• 10 microfinish on the gage surface for consistent, low-wear contact
• Tool steel construction for durability in repeated inspection use
• NIST-traceable Certificate of Accuracy included with each unit
• Conforms to ASME B89.1 dimensional gage standards
• Compatible for use as a reference standard for setting micrometers, verniers, and similar instruments

Compatibility

Designed for go inspection of 0.129-inch diameter features and for setting micrometers, verniers, and other measuring devices requiring a precision reference diameter.

Installation Notes

Plug gages are handled and used by trained inspection or metrology personnel. Clean the gage and the part being inspected before use to prevent measurement error from debris or oil film. Store the gage in its protective case when not in use to avoid surface damage. Do not force the gage into an undersized bore, as this can damage the gage surface and invalidate the calibration certification.