Vermont Gage 111318950 Class Zz Plus Plug Gage

Product Description

The VERMONT GAGE 111318950 is a Class ZZ Plus plug gage designed for precise dimensional inspection of cylindrical bores and holes. Machined from tool steel to a 10 microfinish surface, this gage measures a nominal diameter of 0.1895 inches with a tolerance of 0.0002 inches. It ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality-controlled environments where documented traceability is required. Machinists, toolroom technicians, and quality inspectors use plug gages like this one to verify hole size acceptance in production and inspection applications.

This gage is appropriate for Go inspection work and for setting or verifying micrometers, verniers, and other measuring devices. It fits into light manufacturing, precision machining, and metrology lab environments where ASME B89.1 dimensional standards are observed. The compact overall length of 2.0 inches makes it easy to handle for bench inspection or in-process checks on small-diameter features.

Key Features

• Class ZZ Plus tolerance grade: 0.0002 inches for reliable acceptance/rejection decisions
• 10 microfinish surface for consistent, low-wear gage contact
• Tool steel construction for durability in production inspection use
• NIST-traceable Certificate of Accuracy included for quality documentation
• Conforms to ASME B89.1 dimensional standards
• Compact 2.0-inch overall length for easy single-hand use

Compatibility

Designed for Go inspection of 0.1895-inch nominal diameter bores and for use as a setting standard with micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians, machinists, and metrologists — no power tools or utilities need to be shut down before use. Store the gage in its protective case when not in use and apply a light coat of rust-preventive oil to the gage member after each use. Avoid dropping or striking the gage, as impact damage will compromise the precision ground surface and invalidate the stated tolerance. Periodic recalibration against a traceable standard is recommended to maintain measurement integrity.