Vermont Gage 111129600 Class Zz Plus Plug Gage 0.296 in

Product Description

The VERMONT GAGE 111129600 is a Class ZZ Plus plug gage designed for precise go inspection of machined holes and bores. Built from tool steel with a 10 microfinish surface, this gage checks whether a drilled, reamed, or bored feature falls within acceptable dimensional limits. The nominal measurement diameter is 0.296 inches with a tolerance of 0.0002 inches, making it suitable for close-tolerance inspection work. Each unit ships with a Certificate of Accuracy that carries full NIST traceability, meeting ASME B89.1 standards. Machinists, quality technicians, and inspection personnel use this type of gage as part of incoming, in-process, and final inspection routines.

This plug gage is used in machine shops, manufacturing facilities, and quality control labs where hole diameter verification is required. It is appropriate for go inspection checks on production parts and for setting and verifying hand tools such as set micrometers, verniers, and other measuring devices. The 0.296 inch diameter targets close-tolerance bores in both prototype and production environments. The overall length of 2 inches provides a comfortable grip for bench inspection work without requiring special fixtures in most standard applications.

Key Features

• Class ZZ Plus tolerance classification for go inspection of machined holes and bores
• Nominal measurement diameter of 0.296 inches with a 0.0002 inch tolerance
• 10 microfinish surface for consistent, repeatable contact during inspection
• Tool steel construction for durability and dimensional stability under repeated use
• Certificate of Accuracy included with full NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Suitable for go inspection of bored, drilled, or reamed features at a nominal diameter of 0.296 inches. Also used to set and verify set micrometers, verniers, and other measuring devices requiring a traceable reference standard at this diameter.

Installation Notes

Plug gages are handled and used by machinists and quality inspection personnel, not installed in the field. Store the gage in its protective case when not in use to prevent corrosion and dimensional damage to the lapped surfaces. Clean the gage and the part bore with a lint-free cloth before inspection to remove chips, oils, and debris that can affect readings. Do not force the gage into a bore; hand pressure only is appropriate for go plug gage inspection to avoid wear or damage to the gage or the part.