Vermont Gage 111104500 Class Zz Plus Plug Gage 0.045 in

Product Description

The VERMONT GAGE 111104500 is a Class ZZ Plus plug gage machined from tool steel for precise dimensional inspection of small bores and holes. Measuring a nominal diameter of 0.045 inches, this gage holds a tolerance of 0.0002 inches and features a 10 microfinish surface, delivering the accuracy required for go inspection work on production floors and in quality labs. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS9100 quality systems. The overall length of 2.0 inches suits bench-top use with standard gage handles. Machinists, quality technicians, and metrologists rely on plug gages of this class for consistent, repeatable results in tight-tolerance applications.

This plug gage is suited for go inspection of precision-bored holes, ports, and passages where dimensional conformance must be verified before assembly. It is also used to calibrate and verify set micrometers, verniers, and other measuring devices requiring a traceable reference. Typical environments include aerospace, medical device, automotive, and general precision machining facilities where Class ZZ Plus tolerances are specified by engineering drawings or quality plans. The small 0.045-inch diameter makes it particularly applicable to fine-feature components such as valve bodies, nozzles, and hydraulic manifolds.

Key Features

• 0.045-inch nominal diameter with 0.0002-inch tolerance for tight Class ZZ Plus conformance
• 10 microfinish surface finish minimizes wear and preserves gage accuracy over repeated use
• Tool steel construction provides hardness and wear resistance for production inspection environments
• Includes Certificate of Accuracy with NIST traceability for quality system documentation
• Conforms to ASME B89.1 standards for plain plug gages
• 2.0-inch overall length compatible with standard plug gage handles and fixtures

Compatibility

Designed for use as a go inspection gage and as a reference standard for set micrometers, verniers, and other measuring devices requiring a traceable 0.045-inch diameter reference, per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and metrologists; no mechanical installation is required. Before use, clean the gage and the workpiece bore with a lint-free cloth to remove chips, oils, and debris that could affect measurement accuracy. Never force a plug gage into a bore; apply only light, consistent hand pressure to avoid damaging the gage or the part. Store the gage in its protective case away from other metal tooling to prevent surface damage that would compromise tolerance integrity.