Vermont Gage 112118980 Class Zz Plus Plug Gage 18.98mm

Product Description

The VERMONT GAGE 112118980 is a Class ZZ Plus plug gage designed for dimensional inspection of machined bores and holes with a nominal diameter of 18.98 mm. Built from tool steel with a 10 micro-inch coating finish, this gage delivers a tolerance of 0.00508 mm, meeting the precision demands required for Go inspection work. Each unit ships with a Certificate of Accuracy traceable to NIST standards and conforms to ASME B89.1. Machinists, quality control technicians, and metrology professionals rely on this type of gage for reliable, repeatable measurement verification on the shop floor or in a calibration lab.

This plug gage is suited for Go inspection of workpiece bores in manufacturing and machining environments. It is compatible with use alongside set micrometers, verniers, and other precision measuring devices where bore conformance must be verified to tight tolerances. Typical applications include incoming inspection, in-process quality checks, and final inspection of components requiring controlled hole sizing. The overall length of 2.0000 inches makes it practical for standard bench and hand-held inspection setups. The gage is appropriate for both production floor use and controlled metrology environments where NIST-traceable documentation is required.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for precise Go inspection
• Tool steel construction with 10 micro-inch coating for wear resistance and dimensional stability
• NIST-traceable Certificate of Accuracy included with each unit
• Conforms to ASME B89.1 dimensional gage standards
• Overall length of 2.0000 inches suits standard hand-held and bench inspection use
• Compatible for use with set micrometers, verniers, and other precision measuring devices

Compatibility

Designed for Go inspection applications and for use with set micrometers, verniers, and other precision measuring devices requiring a Class ZZ Plus reference standard.

Installation Notes

Plug gages of this type are handled and used by quality control technicians and machinists trained in precision metrology. Handle with clean, dry hands or lint-free gloves to prevent corrosion and dimensional contamination from skin oils. Store the gage in its case when not in use and allow it to reach ambient room temperature before taking measurements to avoid thermal expansion errors. Periodic recalibration should be performed in accordance with your facility quality management procedures and applicable ASME standards.