Vermont Gage 112115980 Class Zz Plus Plug Gage 15.98mm

Product Description

The VERMONT GAGE 112115980 is a Class ZZ Plus plug gage designed for precision bore and hole inspection in industrial and metrology applications. It features a 15.98 mm diameter with a tolerance of 0.00508 mm, making it suitable for Go-type inspection work where tight dimensional control is required. The gage is manufactured from tool steel and carries a 10 microinch surface finish. It ships with a Certificate of Accuracy traceable to NIST, supporting quality system documentation requirements. Licensed metrologists, machinists, and quality control technicians are the primary users of this tool.

This plug gage is used in Go inspection applications to verify that bored holes, drilled passages, or machined features meet minimum acceptable diameter specifications. It is also suitable for setting and calibrating micrometers, verniers, and other measuring devices where a known reference standard is required. Typical use environments include machine shops, manufacturing quality control stations, and calibration labs handling precision machined components to ASME B89.1 standards.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for precision Go inspection
• 15.98 mm diameter ground from tool steel for wear resistance and dimensional stability
• 10 microinch surface finish for consistent, repeatable contact with inspected surfaces
• Conforms to ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability for quality system compliance

Compatibility

Designed for Go inspection of 15.98 mm nominal diameter bored or machined features. Also suitable for setting micrometers, verniers, and other measuring devices requiring a precision reference standard at this diameter.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists. Before use, clean the gage and the bore being inspected to remove chips, coolant, or debris that could affect measurement accuracy. Do not force the gage into an undersized bore, as this can damage the gage surface or alter its calibration. Store the gage in its protective case when not in use to prevent corrosion and surface damage to the tool steel body.