Vermont Gage 111175100 Class Zz Plus Plug Gage 0.751 in

Product Description

The VERMONT GAGE 111175100 is a Class ZZ Plus plug gage designed for precise go inspection of bored, reamed, and drilled holes. Built from tool steel with a 10 microfinish surface, it measures a nominal diameter of 0.7510 inches with a tolerance of 0.0002 inches. At 2.0 inches overall length, this gage is sized for practical single-hand use in shop and inspection environments. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for documented quality-control workflows. Licensed metrologists, quality technicians, and tool-room machinists rely on this class of gage to verify dimensional compliance before parts move to the next stage of production.

This plug gage is used in go inspection applications where hole diameter acceptance must be confirmed against tight tolerances. Typical environments include machine shops, tool rooms, and manufacturing inspection stations. It is also suited for setting and verifying micrometers, verniers, and other measuring devices where a traceable reference standard is required. The compact overall length makes it compatible with benchtop inspection setups as well as in-process checks at the machine.

Key Features

• Class ZZ Plus tolerance class for go inspection of holes and bores
• 0.7510 inch nominal measurement diameter with 0.0002 inch tolerance
• 10 microfinish surface for consistent, low-wear contact
• Tool steel construction for durability in production environments
• Conforms to ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability for quality documentation

Compatibility

Designed for go inspection of holes nominally sized at 0.751 inches; also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable plug gage reference per ASME B89.1.

Installation Notes

Plug gages of this type are handled and used by quality technicians and tool-room machinists rather than installed in a mechanical system. Keep the gage clean and lightly oiled when stored to prevent corrosion of the tool steel. Never force the gage into an undersized hole, as this can damage the gage surface and invalidate its tolerance class. Periodic recalibration against NIST-traceable standards is recommended to maintain documented measurement integrity.