Vermont Gage 111148700 Class Zz Plus Plug Gage 0.487 in

Product Description

The VERMONT GAGE 111148700 is a Class ZZ Plus plug gage used to verify hole diameter during go inspection procedures. Machined from tool steel to a 0.487-inch nominal diameter, it holds a tolerance of 0.0002 inches and carries a 10 microfinish surface finish. This gage is used by machinists and quality-control technicians to confirm that bored, drilled, or reamed holes fall within acceptable dimensional limits before parts move to the next stage of production or assembly. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documented quality systems.

This plug gage is suited for dimensional inspection in precision machining, manufacturing, and metrology environments. It is appropriate for go inspection of holes in ferrous and non-ferrous workpieces and can also be used to set micrometers, verniers, and other measuring devices to a known reference diameter. The 0.487-inch size covers a range of close-tolerance hole applications common in light mechanical and general industrial work. Overall length is 2.0 inches, making it easy to handle in bench or floor inspection setups.

Key Features

• Class ZZ Plus tolerance: 0.0002 inches for reliable go inspection conformance
• 10 microfinish surface finish reduces wear and ensures consistent contact with bore surfaces
• Tool steel construction provides durability in high-cycle inspection environments
• Includes Certificate of Accuracy with NIST traceability for quality documentation requirements
• Meets ASME B89.1 standards for plain plug gages
• 2.0-inch overall length offers balanced handling for bench inspection use

Compatibility

Designed as a go inspection plug gage for holes with a nominal diameter of 0.487 inches. Also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable reference standard at this diameter.

Installation Notes

Plug gages are handled and used by quality technicians and machinists, not installed in a permanent sense. Before use, clean the gage and the bore with a lint-free cloth to remove chips, oil, or debris that could affect the reading. Never force a plug gage into an undersized hole, as this will damage the gage and invalidate calibration. Store the gage in its protective case and re-certify on a schedule consistent with your quality management system requirements.