Vermont Gage 112119940 Class Zz Plus Plug Gage 19.94mm

Product Description

The VERMONT GAGE 112119940 is a Class ZZ Plus cylindrical plug gage designed to verify bore diameters to a high degree of precision. With a nominal diameter of 19.94 mm and a tolerance of 0.00508 mm, this gage provides reliable Go inspection results in production and quality-control environments. Constructed from tool steel with a 10 micro-inch coating finish, it delivers consistent dimensional accuracy across repeated use cycles. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS quality systems. Metrologists, machinists, and quality technicians rely on this class of gage for fast, repeatable in-process and final inspection checks.

This plug gage is suited for Go inspection of bored holes, turned bores, and machined features requiring diameter verification at 19.94 mm. It is used alongside micrometers, verniers, and other measuring devices to confirm dimensional conformance on machined parts in both job-shop and high-volume manufacturing settings. The 2.00-inch overall length accommodates standard handle sets. Applications include incoming inspection, in-process quality checks, and calibration laboratory use where ASME B89.1 compliance is required.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for precise Go inspection
• 19.94 mm nominal diameter, tool steel construction for wear resistance
• 10 micro-inch coating finish for surface consistency and corrosion protection
• Includes Certificate of Accuracy with NIST traceability for audit and calibration records
• Conforms to ASME B89.1 standards
• 2.00-inch overall length compatible with standard plug gage handles

Compatibility

Designed for use with standard plug gage handle sets and compatible with Go inspection setups, micrometers, verniers, and other precision measuring devices per ASME B89.1 applications.

Installation Notes

Plug gages should be handled and stored by calibration or quality personnel following shop metrology procedures. Clean the gage and the bore being inspected before use to prevent measurement error from debris or oil film. Do not force the gage into a bore; apply only light hand pressure consistent with Go gage practice. Store in a protective case away from temperature extremes to maintain dimensional stability.