Vermont Gage 111156000 Class Zz Plus Plug Gage 0.56 in

Product Description

The VERMONT GAGE 111156000 is a Class ZZ Plus plug gage designed for precise go inspection of bored, drilled, and reamed holes. Manufactured from tool steel, this gage measures a 0.56-inch diameter with a tolerance of 0.0002 inches and a 10 microinch surface finish. It ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality-controlled environments where documented traceability is required. Machinists, toolroom technicians, and quality control inspectors rely on plug gages like this one to verify hole dimensions quickly and consistently against defined acceptance criteria.

This plug gage is used in machine shops, manufacturing facilities, and inspection departments for go-type dimensional verification of holes and bores. The 0.56-inch diameter fits common production tolerancing scenarios where hole acceptance must be confirmed before assembly. It is also appropriate for setting and verifying micrometers, verniers, and other measuring devices. The overall length of 2.0 inches makes it practical for standard-depth inspection work across a range of workpiece materials and configurations.

Key Features

• Class ZZ Plus tolerance grade with 0.0002-inch tolerance for accurate go inspection
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction provides durability under repeated inspection use
• Includes Certificate of Accuracy with NIST Traceability for documented quality records
• Conforms to ASME B89.1 standards for dimensional gaging
• 2.0-inch overall length suits standard hole-depth inspection tasks

Compatibility

Suitable for go inspection of 0.56-inch diameter holes and for use as a setting standard with micrometers, verniers, and other calibrated measuring devices in toolroom and production inspection applications.

Installation Notes

Plug gages are handled and used by trained machinists or quality technicians following established metrology procedures. Store the gage in its protective case when not in use to prevent surface damage that could affect measurement accuracy. Clean contact surfaces before each use and never force the gage into a hole, as improper insertion can cause gage or workpiece damage. Periodic recalibration against traceable standards is recommended to maintain measurement integrity over time.