Vermont Gage 112102960 Class Zz Plus Plug Gage 2.96mm

Product Description

The VERMONT GAGE 112102960 is a Class ZZ Plus plug gage designed for precise dimensional inspection of small bores and holes. Manufactured from tool steel, this pin-style gage features a 2.96 mm diameter with a tolerance of 0.005 mm and a 10 microfinish surface finish. It measures 2.0 inches in overall length, making it well-suited for close-tolerance go inspection work. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 standards. Metrology technicians, machining shops, and quality control departments rely on this type of gage for reliable, repeatable pass/fail dimensional verification.

This plug gage is used in go inspection applications where bore diameter must fall within a tight tolerance band. It is compatible with standard gage handle sets and is appropriate for use alongside set micrometers, verniers, and other precision measuring devices. The Class ZZ Plus designation indicates a higher accuracy grade suitable for inspection of close-tolerance machined components in both production and tool room environments.

Key Features

• 2.96 mm diameter with 0.005 mm tolerance for close-tolerance go inspection
• 10 microfinish surface for consistent, low-friction bore contact
• Tool steel construction for durability and dimensional stability
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• 2.0-inch overall length compatible with standard gage handles

Compatibility

Designed for use in go inspection applications with standard plug gage handle sets, and for use alongside set micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages of this type are handled and used by metrology technicians and quality control personnel. Store the gage in its protective case when not in use to prevent surface damage to the precision-ground diameter. Clean contact surfaces before use to avoid false readings caused by debris or oil film. Do not force the gage into a bore; if resistance is felt beyond normal slip-fit contact, the bore is likely undersize.