Vermont Gage 112312950 Class Zz Plus Plug Gage 12.95 Mm

Product Description

The VERMONT GAGE 112312950 is a Class ZZ Plus plug gage manufactured from tool steel for dimensional go inspection of machined bores and holes. It is designed to verify that a hole meets its minimum acceptable size, making it a standard tool in quality control and production inspection workflows. The gage measures 12.95 mm in diameter with a tolerance of 0.005 mm and carries a 10 microfinish surface finish. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy with NIST Traceability, supporting documented calibration and inspection records required in regulated shop environments.

This plug gage is suited for use in precision manufacturing, machine shops, and metrology labs where bore diameter verification is required. It is compatible with go inspection procedures and can be used alongside set micrometers, verniers, and other measuring devices for calibration and reference. The Class ZZ Plus tolerance classification makes it appropriate for general-purpose production inspection where consistent, repeatable hole acceptance checks are required. Licensed metrologists, quality technicians, and machining professionals are the primary users.

Key Features

• Class ZZ Plus tolerance classification for general-purpose go inspection
• 12.95 mm diameter with 0.005 mm tolerance for precise bore verification
• 10 microfinish surface finish for accurate contact with inspected surfaces
• Tool steel construction for durability and dimensional stability
• Includes Certificate of Accuracy with NIST Traceability for documented calibration compliance
• Meets ASME B89.1 standards

Compatibility

Designed for use in go inspection applications and compatible with set micrometers, verniers, and other measuring devices as stated by the manufacturer. Suitable for any application requiring bore acceptance verification at 12.95 mm nominal diameter.

Installation Notes

Plug gages are handled and used by quality technicians and metrologists in inspection environments, not installed in a mechanical system. Store the gage in its protective case when not in use to prevent surface damage or dimensional drift. Clean the gage and the bore being inspected before use to avoid false readings caused by contamination. Follow ASME B89.1 handling practices and your facility calibration procedures to maintain traceability.