Vermont Gage 112309990 Class Zz Plus Plug Gage 9.99 Mm

Product Description

The VERMONT GAGE 112309990 is a Class ZZ Plus plug gage used to verify bore diameters to tight dimensional tolerances in precision inspection environments. This gage measures 9.99 mm in diameter and holds a tolerance of 0.00508 mm, making it suitable for go inspection work where accurate bore verification is critical. Constructed from tool steel with a 10 microfinish surface, it delivers the durability and surface consistency required for repeated use in production or quality-control settings. Each unit ships with a Certificate of Accuracy with NIST traceability, meeting ASME B89.1 standards. Licensed metrologists, quality technicians, and toolroom machinists are the primary users.

This plug gage is used in applications where bore diameter verification is required before assembly or final inspection. It is suited for go inspection routines, setting micrometers, verniers, and other measuring devices that require a calibrated reference. Typical environments include machine shops, manufacturing quality labs, and precision assembly floors handling close-tolerance components. The 9.99 mm diameter positions this gage in the mid-range metric bore inspection category commonly encountered in mechanical and tooling applications.

Key Features

• 9.99 mm diameter with 0.00508 mm tolerance for precise go inspection
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent gage-to-bore contact
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 dimensional standards
• Compact overall length of 2.0000 inches for easy handling

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage suitable for go inspection of 9.99 mm diameter bores and for setting micrometers, verniers, and other calibrated measuring devices.

Installation Notes

This gage is handled by quality technicians and metrologists in inspection or toolroom settings. Clean the gage and bore thoroughly before use to prevent contamination that could affect measurement accuracy. Store the gage in its protective case when not in use to preserve the microfinish surface. Do not use this gage as a forcing tool or apply lateral pressure, as this can alter the gage diameter and invalidate calibration.