Vermont Gage 112108300 Class Zz Plus Plug Gage 8.3mm

Product Description

The VERMONT GAGE 112108300 is a Class ZZ Plus cylindrical plug gage designed for go-type bore inspection. It measures 8.3 mm in diameter with a tolerance of 0.00508 mm, making it suitable for precision verification of machined holes and bores. The tool steel construction and 10 microfinish surface provide consistent, repeatable contact. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality documentation requirements in production and metrology environments. Machinists, quality technicians, and tool room professionals use this gage for in-process and final inspection.

This plug gage is used in go-type inspection applications to verify that a bore or hole meets minimum dimensional requirements. It is appropriate for use alongside micrometers, verniers, and other calibrated measuring devices during setup, in-process checks, or final acceptance inspection. Typical environments include machine shops, manufacturing cells, and metrology labs handling precision-tolerance work. The 8.3 mm nominal diameter targets applications where that specific bore size must be verified per ASME B89.1 standards.

Key Features

• Class ZZ Plus tolerance rating: 0.00508 mm for high-precision go inspection
• 8.3 mm nominal diameter in tool steel construction
• 10 microfinish surface for consistent gage contact and reduced wear
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for documentation and audit compliance
• Compact at 2.0 inches overall length for easy single-hand use

Compatibility

Designed for go-type bore inspection use with micrometers, verniers, and other precision measuring devices where an 8.3 mm nominal diameter plug gage is required per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no installation is required in the traditional sense. Keep the gage clean and lightly oiled when stored to prevent corrosion on the tool steel surface. Never force the gage into a bore - go gages should pass under their own weight or light hand pressure only. Store in the provided case or a protective holder to preserve the microfinish and dimensional integrity.