Vermont Gage 111109900 Class Zz Plus Plug Gage 0.099 in

Product Description

The VERMONT GAGE 111109900 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored holes, drilled features, and other cylindrical toleranced openings. Measuring 0.099 inches in diameter, it delivers a tolerance of 0.0002 inches and a 10 microfinish surface quality. Made from tool steel, this gage is used in Go inspection applications to verify that a feature falls within its minimum acceptable limit. Each unit ships with a Certificate of Accuracy with NIST traceability, meeting the documentation requirements of quality-controlled shop and lab environments. Machinists, metrology technicians, and quality control professionals use this gage as part of routine dimensional verification workflows.

This plug gage is suited for Go inspection of precision-machined components where tight bore tolerances must be confirmed. It is also appropriate for setting and verifying the calibration of micrometers, verniers, and other measuring devices. The 0.099-inch diameter range targets small-bore applications common in precision machining, toolroom environments, and inspection departments. At 2.0 inches overall length, the gage is compact and easy to handle in bench inspection setups. Compliance with ASME B89.1 makes it appropriate for use in facilities that require traceable, standards-based measurement tools.

Key Features

• 0.099-inch measurement diameter for small-bore Go inspection
• 0.0002-inch tolerance for high-precision dimensional verification
• 10 microfinish surface finish for consistent gage contact
• Tool steel construction for durability and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Compliant with ASME B89.1 dimensional gage standards

Compatibility

Designed for Go inspection use with bored and drilled features requiring a 0.099-inch nominal diameter check, and suitable for setting micrometers, verniers, and other precision measuring devices per ASME B89.1 requirements.

Installation Notes

Plug gages should be handled by metrology or quality control personnel using clean, dry hands or lint-free gloves to prevent corrosion and dimensional error from thermal expansion. Store the gage in its case away from heat sources and contaminants when not in use. Apply a light coat of instrument-grade oil if the gage will be stored for extended periods. Do not force the gage into a feature — proper Go inspection relies on the gage entering under its own weight or with minimal hand pressure only.