Vermont Gage 112304510 Class Zz Plus Plug Gage 4.51mm

Product Description

The VERMONT GAGE 112304510 is a Class ZZ Plus cylindrical plug gage manufactured from tool steel for use in precision dimensional inspection. It measures 4.51 mm in diameter with a tolerance of 0.005 mm, making it suited for Go inspection applications where tight bore verification is required. The gage has a 10 microfinish surface coating for consistent, repeatable contact with the workpiece. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming it meets ASME B89.1 standards. Machinists, quality control technicians, and tool room personnel typically use this type of gage in production and inspection environments.

This plug gage is designed for Go inspection of precision bores and holes. It is also suitable for setting and verifying micrometers, verniers, and other measuring devices in shop and lab settings. The 4.51 mm diameter makes it appropriate for small-bore inspection tasks in both general manufacturing and precision machining applications. Residential or light commercial tool calibration setups, as well as high-volume production inspection lines, are both common deployment environments for this gage class.

Key Features

• Class ZZ Plus tolerance rating at 0.005 mm for precision Go inspection
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface for consistent bore contact
• Overall length of 2.0000 inches for standard handle compatibility
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 dimensional gage standards

Compatibility

Designed as an OEM-style precision plug gage for Go inspection of 4.51 mm diameter bores, and compatible for use as a setting standard with micrometers, verniers, and other calibrated measuring devices.

Installation Notes

Plug gages of this type are handled and used by quality control technicians and machinists in inspection or tool room environments. Ensure the bore and gage contact surfaces are clean and free of debris before use to avoid false readings or surface damage. Store the gage in its case when not in use to protect the lapped surface finish. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.