Vermont Gage 111149200 Class Zz Plus Plug Gage 0.492 in

Product Description

The VERMONT GAGE 111149200 is a Class ZZ Plus plug gage machined from tool steel for dimensional inspection of bored holes, machined features, and precision-fitted components. It measures a nominal diameter of 0.492 inches with a tolerance of 0.0002 inches and a 10 microfinish surface, delivering consistent, repeatable results in toolroom and production environments. Every unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for quality-controlled manufacturing operations. Machinists, quality technicians, and metrology professionals use this gage to verify that a feature meets its lower limit before assembly or further machining.

This plug gage is suited for go-type inspection applications on holes and bores measuring 0.492 inches in diameter. It is compatible with use alongside set micrometers, verniers, and other calibrated measuring devices for comparative gauging work. Typical install scenarios include incoming inspection, in-process checking on CNC and manual machining lines, and final acceptance checks in aerospace, automotive, and general metalworking shops. The 2.0-inch overall length provides a comfortable, controllable grip during single-handed insertion checks.

Key Features

• 0.492-inch nominal diameter with 0.0002-inch Class ZZ Plus tolerance
• 10 microfinish surface for reduced wear on the gage and the part being inspected
• Tool steel construction for hardness and long service life in production use
• Includes Certificate of Accuracy with NIST traceability for documented quality systems
• Conforms to ASME B89.1 dimensional gage standards
• 2.0-inch overall length for controlled, single-handed insertion

Compatibility

Designed for go-type inspection of 0.492-inch diameter features; suitable for use with set micrometers, verniers, and other measuring devices as stated by the manufacturer.

Installation Notes

Plug gages are handled by quality technicians and machinists and require no power-down procedure. Clean and lightly oil the gage before and after use to prevent corrosion and maintain surface finish integrity. Never force the gage into a feature; if resistance is felt before full insertion on a go gage, the hole is undersize and should be reworked. Store in the provided case or a protected toolroom location to prevent contact damage to the lapped surface.