Vermont Gage 112305190 Class Zz Plus Plug Gage 5.19 Mm

Product Description

The VERMONT GAGE 112305190 is a Class ZZ Plus plug gage designed for precision bore and hole inspection in machining and metrology applications. The gage measures a nominal diameter of 5.19 mm with a tolerance of 0.00508 mm, making it suitable for go-inspection work where tight dimensional control is required. Manufactured from tool steel and finished to a 10 microfinish surface quality, this plug gage delivers consistent, repeatable results. Each unit ships with a Certificate of Accuracy traceable to NIST standards, meeting the requirements of ASME B89.1. Licensed metrologists, machinists, and quality control technicians use this gage as part of incoming inspection and process verification routines.

This plug gage is suited for go inspection tasks across manufacturing, job shop, and quality lab environments. It is commonly used to verify bore diameters on machined parts, set micrometers, and calibrate verniers and other measuring devices. Its compact overall length of 2.0 inches makes it easy to handle in both bench and floor-level inspection setups. The Class ZZ Plus designation indicates it meets tighter-than-standard ZZ tolerances, appropriate for applications demanding higher confidence in dimensional verification.

Key Features

• Class ZZ Plus tolerance class for tighter dimensional accuracy than standard ZZ plug gages
• 5.19 mm nominal diameter with a 0.00508 mm tolerance
• 10 microfinish surface coating for consistent contact and reduced wear
• Tool steel construction for durability in production and lab environments
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of 5.19 mm diameter bores and for use with micrometers, verniers, and other precision measuring devices requiring a traceable reference standard.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power tools or utilities need to be shut down for gage use. Store the gage in its protective case and apply a light coat of rust-preventive oil when not in use to preserve the tool steel surface. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Calibration intervals should follow your facility quality management system and applicable metrology standards.