Vermont Gage 112307610 Class Zz Plus Plug Gage 7.61 Mm

Product Description

The VERMONT GAGE 112307610 is a Class ZZ Plus plug gage designed for precise bore and hole diameter inspection in dimensional metrology applications. Manufactured from tool steel with a 10 microfinish surface coating, this gage measures a nominal diameter of 7.61 mm and holds a tolerance of 0.00508 mm. At an overall length of 2.0000 inches and weighing just 0.04 pounds, it is sized for handheld use during production or inspection workflows. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality-controlled environments. It is intended for use by machinists, quality technicians, and calibration professionals.

This plug gage is used in go inspection applications to verify that a bored or drilled hole meets minimum dimensional requirements. It is also used as a reference standard for setting micrometers, verniers, and other measuring devices to a known diameter. The 7.61 mm size targets precision machined components where tight hole tolerances are required. Typical install and use scenarios include machine shops, tool rooms, and quality labs in both production and maintenance environments. Compliance with ASME B89.1 makes it appropriate for regulated inspection programs.

Key Features

• Class ZZ Plus tolerance grade per ASME B89.1 standard
• 7.61 mm nominal diameter with 0.00508 mm tolerance
• Tool steel construction with 10 microfinish surface coating for wear resistance and measurement accuracy
• Includes Certificate of Accuracy with NIST traceability
• Suitable for go inspection as well as setting micrometers, verniers, and other measuring devices
• Compact form factor at 2.0000 inches overall length and 0.04 pounds

Compatibility

Designed for use as a go plug gage in dimensional inspection of 7.61 mm diameter bores, and as a setting standard for micrometers, verniers, and other precision measuring devices conforming to ASME B89.1 requirements.

Installation Notes

Plug gages are handled and applied by quality technicians and machinists during inspection routines. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel body. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Store in a protective case away from abrasive materials to preserve the 10 microfinish surface and maintain calibration integrity.