Vermont Gage 111305550 Class Zz Plus Plug Gage 0.0555 in

Product Description

The VERMONT GAGE 111305550 is a Class ZZ Plus plug gage used to verify bore and hole dimensions to tight tolerances in precision inspection work. Machined from tool steel, this gage measures a nominal diameter of 0.0555 inches with a tolerance of 0.0002 inches. The working surface carries a 10 microfinish, ensuring consistent, repeatable contact during go inspection checks. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for calibration-controlled environments. Quality control technicians, tool and die makers, and metrology lab personnel are the primary users of this type of gage.

This plug gage is intended for go inspection applications where confirming minimum acceptable bore size is required. It is also used as a setting standard for micrometers, verniers, and other precision measuring devices that require a known reference. The overall length of 2.0 inches makes it easy to handle in bench-top inspection setups. It is appropriate for both production-floor inspection and controlled metrology environments where ASME B89.1 standards apply.

Key Features

• Nominal measurement diameter of 0.0555 inches for precise small-bore inspection
• Class ZZ Plus tolerance of 0.0002 inches per ASME B89.1
• 10 microfinish surface for consistent gage contact and reduced wear
• Tool steel construction for durability and dimensional stability
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Suitable as a setting reference for micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of bores and holes at 0.0555 inches nominal diameter, and for use as a setting reference with micrometers, verniers, and other precision measuring devices conforming to ASME B89.1 requirements.

Installation Notes

Handle plug gages with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store in a protective case away from magnetic fields and abrasive materials when not in use. Apply only light, consistent hand pressure during inspection — forcing the gage can damage the gage member or the workpiece bore. Calibration and use should follow the procedures defined in ASME B89.1 and any applicable facility quality management requirements.