Vermont Gage 112302930 Class Zz Plus Plug Gage 2.93 Mm

Product Description

The VERMONT GAGE 112302930 is a Class ZZ Plus plug gage designed for precise dimensional inspection of small-diameter holes and bores. Machined from tool steel and finished to a 10 microfinish surface quality, this gage checks whether a feature meets its lower limit of acceptable size in a Go inspection workflow. The tolerance is 0.00508 mm, placing it in the tighter ZZ Plus classification for applications where standard Class ZZ tolerances are insufficient. A Certificate of Accuracy with NIST traceability is included, supporting quality documentation requirements in production and inspection environments.

This plug gage is sized for a 2.93 mm nominal diameter and is suited for use in dimensional inspection stations, calibration labs, and on the shop floor. Typical users include quality technicians, machinists, and metrologists who need to verify hole size against a known Go threshold. Compatible measuring workflows include Go inspection routines, setting of micrometers, verniers, and other handheld measuring devices per the application notes provided by the manufacturer.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for tight-tolerance Go inspection
• 2.93 mm nominal diameter for small-bore dimensional verification
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for accurate, repeatable contact measurement
• Includes Certificate of Accuracy with NIST traceability for quality records
• Manufactured to ASME B89.1 standards

Compatibility

Designed for Go inspection use and compatible with setting of micrometers, verniers, and other measuring devices. Intended for use in any inspection application requiring a 2.93 mm nominal Go plug gage conforming to ASME B89.1.

Installation Notes

Plug gages of this type are handled and used by quality technicians and calibration personnel, not installed in the traditional sense. Store the gage in its protective case when not in use to prevent surface damage. Clean the gage and the bore being inspected before use to prevent debris from affecting measurement results. Avoid dropping or striking the gage, as impact can alter its geometry and invalidate its calibration status.