Vermont Gage 112315950 Class Zz Plus Plug Gage 15.95mm

Product Description

The VERMONT GAGE 112315950 is a Class ZZ Plus cylindrical plug gage designed for go-type bore inspection and precision measurement verification. It is manufactured from tool steel and ground to a 15.95 mm nominal diameter with a tolerance of 0.005 mm and a 10 microinch surface finish. The overall length is 2.0000 inches. This gage is used to verify that a machined bore or hole meets minimum size requirements, confirming the workpiece will accept a mating part. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality-controlled production environments. Machinists, quality technicians, and tool room professionals are the primary users.

This plug gage is suited for go inspection of bores in production machining, toolroom, and metrology lab settings. It is also used to set and verify micrometers, verniers, and other handheld measuring devices. The Class ZZ Plus tolerance class meets ASME B89.1 standards, making it appropriate for general-purpose inspection of commercial-grade components. It is a single-end gage intended for manual use in both shop-floor and controlled inspection environments.

Key Features

• Class ZZ Plus tolerance class per ASME B89.1 for general-purpose go inspection
• 15.95 mm nominal diameter with 0.005 mm tolerance
• 10 microinch surface finish for consistent, repeatable contact
• Tool steel construction for wear resistance and dimensional stability
• Overall length of 2.0000 inches for easy single-hand operation
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed for go-type bore inspection and suitable for use with micrometers, verniers, and other precision measuring devices requiring a 15.95 mm reference standard.

Installation Notes

This gage is handled and applied by quality technicians or machinists and requires no permanent installation. Clean the gage and the bore or measuring device contact surfaces before use to prevent debris from affecting readings. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Store in a protective case away from temperature extremes to maintain dimensional accuracy.