Vermont Gage 112303250 Class Zz Plus Plug Gage 3.25 Mm

Product Description

The VERMONT GAGE 112303250 is a Class ZZ Plus plug gage designed for precision hole diameter inspection in manufacturing and quality control environments. Built from tool steel with a 10 microfinish surface coating, this gage delivers the accuracy and repeatability required for go inspection tasks. It carries a tolerance of 0.00508 mm and ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in calibrated inspection programs. Machinists, quality technicians, and tool room professionals rely on this type of plug gage for fast, reliable attribute inspection of small-diameter bores.

This plug gage is used in both production floor and inspection lab settings where hole acceptance or rejection must be determined quickly and consistently. At 3.25 mm in diameter and an overall length of 2.0000 inches, it is well suited for inspecting small precision bores on machined components. It is also used to set and verify micrometers, verniers, and other comparative measuring devices, supporting calibration workflows across a range of metrology equipment.

Key Features

• Class ZZ Plus tolerance class with 0.00508 mm tolerance for precise go inspection
• 10 microfinish surface coating for smooth, repeatable gage contact
• Tool steel construction for durability in production and lab environments
• Includes Certificate of Accuracy with NIST traceability for calibration compliance
• Meets ASME B89.1 standards for dimensional gaging
• Compatible with go inspection, micrometer setting, and vernier verification applications

Compatibility

Designed for go inspection of 3.25 mm diameter bores and for use in setting micrometers, verniers, and other measuring devices per the stated application data.

Installation Notes

Plug gages of this type are handled and used by quality technicians and machinists in accordance with ASME B89.1 practices. 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 a bore; apply only hand pressure to avoid damage to the gage or the workpiece. Store with the Certificate of Accuracy for ongoing calibration record-keeping.