Vermont Gage 111122600 Class Zz Plus Plug Gage 0.226 in

Product Description

The VERMONT GAGE 111122600 is a Class ZZ Plus plug gage designed for precise dimensional inspection of 0.226-inch diameter holes and bores. Manufactured from tool steel with a 10 microfinish surface, this gage delivers a tolerance of 0.0002 inches, making it suitable for Go inspection work where accurate pass/fail verification is required. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 standards. Metrology technicians, machinists, and quality control personnel rely on plug gages like this one to verify machined hole dimensions quickly and consistently on the shop floor or in an inspection lab.

This plug gage is used in Go inspection applications to verify that a drilled, reamed, or bored hole meets its minimum size requirement. It is also suitable for setting micrometers, verniers, and other comparative measuring devices to a known reference diameter. The 2.0-inch overall length provides a practical handle length for single-handed operation in both bench and in-process inspection environments. It is appropriate for use in precision manufacturing, toolroom work, and quality assurance workflows across metalworking and machining industries.

Key Features

• Class ZZ Plus tolerance grade with 0.0002-inch tolerance for accurate Go inspection
• 10 microfinish surface for consistent, repeatable gage contact
• Tool steel construction for durability and wear resistance in production environments
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• 2.0-inch overall length for comfortable single-handed use

Compatibility

Designed for Go inspection of 0.226-inch diameter features and for setting micrometers, verniers, and other measuring devices to a known reference diameter, per ASME B89.1.

Installation Notes

Plug gages are handled and stored by metrology or quality control personnel — no power tools or electrical isolation is required. Clean the gage and the feature being checked before use to prevent debris from affecting measurement accuracy. Do not force the gage through a hole; if resistance is felt, the feature is out of tolerance on the undersized side. Store in the provided case or a clean, dry environment to protect the lapped surface from corrosion and damage.