Vermont Gage 112103520 Class Zz Plus Plug Gage 3.52 Mm

Product Description

The VERMONT GAGE 112103520 is a Class ZZ Plus plug gage designed for precision dimensional inspection in metrology and quality control environments. Machined from tool steel with a 10 microfinish surface, this gage delivers reliable go-inspection performance at a 3.52 mm diameter with a tolerance of 0.005 mm (0.00508 mm). Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for calibrated measurement workflows. Metrologists, quality technicians, and tool room professionals use this gage to verify bore diameters, set micrometers, verniers, and other measuring devices to a traceable standard.

This plug gage is suited for shop floor and lab inspection applications where Class ZZ Plus tolerances are required. It is used to perform go inspection checks on precision bored holes and serves as a setting standard for micrometers, vernier calipers, and comparable measuring instruments. The 3.52 mm diameter makes it appropriate for small-bore applications common in precision machining, tooling, and instrumentation manufacturing environments.

Key Features

• Class ZZ Plus tolerance class with 0.005 mm tolerance for precise go inspection
• 3.52 mm diameter, tool steel construction for durability and dimensional stability
• 10 microfinish surface for consistent, repeatable gage contact
• Meets ASME B89.1 standards for gage accuracy and manufacturing
• Includes Certificate of Accuracy with NIST traceability for calibration records
• Overall length of 2.0000 inches for standard handle compatibility

Compatibility

Designed as an OEM-style replacement and setting standard for use with micrometers, verniers, and other precision measuring devices requiring a Class ZZ Plus plug gage at 3.52 mm diameter.

Installation Notes

Plug gages of this class are handled and used by metrology technicians and quality control personnel. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Always handle with clean, lint-free gloves to avoid thermal expansion from body heat, which can affect readings at tight tolerances. Store in the provided case and reference the included Certificate of Accuracy when incorporating into a calibration system.