Vermont Gage 112313230 Class Zz Plus Plug Gage 13.23mm

Product Description

The VERMONT GAGE 112313230 is a Class ZZ Plus cylindrical plug gage used to verify bore diameters to tight dimensional tolerances. It is ground from tool steel and carries a 10 micro-inch surface finish, which supports accurate, repeatable contact with the workpiece. The nominal diameter is 13.23 mm with a tolerance of 0.00508 mm, and the overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST. Machinists, quality technicians, and tool-room professionals use this gage as part of a Go inspection routine to confirm that a bore meets its lower dimensional limit before the part advances in production.

This plug gage is suited for Go inspection of bored, reamed, or honed holes at the 13.23 mm nominal size. It is used in conjunction with micrometers, verniers, and other precision measuring devices to establish and confirm dimensional conformance on machined components. Typical applications include incoming inspection, in-process quality checks, and final acceptance inspection in job-shop, production, and tool-room environments. The gage conforms to ASME B89.1 standards, making it appropriate for both commercial and aerospace-adjacent inspection workflows where traceable documentation is required.

Key Features

• Class ZZ Plus tolerance rating: 0.00508 mm total tolerance for high-accuracy Go inspection
• Tool steel construction for hardness, wear resistance, and dimensional stability
• 10 micro-inch surface finish ensures consistent, accurate contact with bore surfaces
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for documentation and audit requirements
• Compact overall length of 2.0000 inches suits confined bore access and benchtop inspection setups

Compatibility

Designed for Go inspection of bores at a 13.23 mm nominal diameter. Compatible with standard gage handle sets, micrometer stands, and bench-mounted inspection fixtures used in precision machining and quality-control applications.

Installation Notes

Plug gages are handled and stored by quality and tool-room technicians following shop calibration procedures. Before use, clean the gage and bore with a lint-free cloth to remove oils, chips, and debris that could affect readings. Never force the gage through a bore; light hand pressure only is appropriate for Go inspection. Store the gage in its case away from other metal tools to prevent contact damage to the ground surface.