Vermont Gage 112315410 Class Zz Plus Plug Gage 15.41mm

Product Description

The VERMONT GAGE 112315410 is a Class ZZ Plus plug gage machined from tool steel and ground to a 15.41 mm diameter with a tolerance of 0.00508 mm. It is used for go-type dimensional inspection of bored holes, machined bores, and other precision-fit features. The gage ships with a Certificate of Accuracy traceable to NIST, confirming it meets ASME B89.1 requirements. The 10 micro-inch surface finish on the gaging surface ensures consistent, repeatable contact across its working life. Machinists, quality technicians, and toolroom staff use this gage as a direct go-inspection reference and as a setting master for micrometers, verniers, and other comparative measuring instruments.

This plug gage is suited for production floor inspection, incoming inspection stations, and toolroom applications where a NIST-traceable Class ZZ Plus standard is required. It applies to any process where a 15.41 mm bore must be verified against a go-inspection criterion, including precision machined components in metalworking, manufacturing, and assembly operations. The overall length of 2.0000 inches makes it compatible with standard gage handle systems. It is equally useful as a setting artifact for bench micrometers and bore-measuring instruments requiring a certified reference standard.

Key Features

• Class ZZ Plus tolerance class — 0.00508 mm tolerance for tight dimensional control
• 15.41 mm gaging diameter for go-type bore inspection
• Tool steel construction for durability and wear resistance in production environments
• 10 micro-inch surface finish on the gaging member for consistent contact
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Designed for use in go-type bore inspection and as a setting master for micrometers, verniers, and other measuring devices. Fits standard plug gage handle systems accepting a 15.41 mm gage member with a 2.0000-inch overall length.

Installation Notes

Plug gages should be handled with clean cotton or nitrile gloves to prevent corrosion from skin oils. Before use, clean the gage member and the bore being inspected with a lint-free cloth and appropriate solvent. Store the gage in its protective case away from heat sources and abrasive materials to preserve the ground surface finish. Periodic recalibration against a NIST-traceable standard is recommended to maintain measurement integrity over time.