Vermont Gage 111107900 Class Zz Plus Plug Gage 0.079 in

Product Description

The VERMONT GAGE 111107900 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored holes, drilled passages, and similar features requiring precise measurement verification. It measures a nominal diameter of 0.079 inches with a tolerance of 0.0002 inches and features a 10 microfinish surface for accurate, repeatable contact. Overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements in quality-controlled manufacturing and metrology environments. Machinists, quality technicians, and tool-room professionals use this gage to verify hole dimensions against specification before part acceptance.

This plug gage is suited for go inspection applications in precision machining, tool-and-die, and manufacturing quality control settings. It is used alongside set micrometers, verniers, and other measuring devices to confirm that drilled or bored hole diameters fall within acceptable tolerance bands. The Class ZZ Plus designation indicates a tighter-tolerance grade appropriate for inspection rather than working-gage applications. Typical users include QC inspectors and machinists in job shops, production facilities, and metrology labs requiring ASME B89.1-compliant gaging tools.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inches tolerance for precise go inspection
• Tool steel construction for durability and wear resistance in production environments
• 10 microfinish surface for consistent, accurate contact during measurement
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Compliant with ASME B89.1 gaging standards
• Compact 2-inch overall length for easy handling in tight inspection setups

Compatibility

Designed for go inspection use with set micrometers, verniers, and other measuring devices as stated by the manufacturer. Suitable for any application requiring ASME B89.1-compliant plug gaging at a 0.079-inch nominal diameter.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no power source or mechanical installation is required. Store the gage in its protective case when not in use to prevent surface damage and dimensional drift. Clean the gage and the part opening before inspection to remove chips, oils, or debris that could affect reading accuracy. Do not force the gage into an undersized hole, as this can damage the gage surface and compromise calibration.