Vermont Gage 112117580 Class Zz Plus Plug Gage 17.58mm

Product Description

The VERMONT GAGE 112117580 is a Class ZZ Plus plug gage designed for dimensional inspection of bored holes, machined bores, and precision-fit openings. It measures 17.58 mm in nominal diameter and is manufactured from tool steel for durability and dimensional stability under repeated use. The gage carries a tolerance of 0.005 mm and conforms to ASME B89.1 standards. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for calibrated inspection environments. The overall length is 2.0000 inches. Machinists, quality control technicians, and tool room personnel use this type of gage for go-inspection workflows on precision components.

Class ZZ Plus plug gages are used in production and inspection environments where bore diameter verification is required. This gage is suited for go inspection applications and can also be used to set micrometers, verniers, and other measuring devices to a known reference diameter. It is appropriate for use in machine shops, manufacturing facilities, and quality labs handling precision metalwork. The 17.58 mm size targets metric-tolerance bores common in tooling, fixtures, and mechanical assemblies.

Key Features

• Class ZZ Plus tolerance grade with 0.005 mm tolerance for precise go-inspection work
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Tool steel construction provides wear resistance and dimensional stability
• 10 Micro finish coating on gage surface for consistent contact measurements
• Suitable for setting micrometers, verniers, and other measuring devices to reference diameter

Compatibility

Designed for go inspection of 17.58 mm nominal diameter bores and as a reference setting gage for micrometers, verniers, and other measuring devices requiring a traceable dimensional reference.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists in inspection environments. Before use, clean the gage and bore surfaces to remove debris, chips, or cutting fluid that could affect measurement accuracy. Do not force the gage through a bore under inspection, as excessive force can damage the gage or workpiece and invalidate the measurement. Store the gage in its case when not in use to protect the precision ground surface from damage or corrosion.