Vermont Gage 111122800 Class Zz Plus Plug Gage 0.228 in

Product Description

The VERMONT GAGE 111122800 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of hole and bore tolerances. It measures 0.228 inches in diameter with a tolerance of 0.0002 inches, making it suitable for verifying tight-tolerance features in precision machined parts. The gage has an overall length of 2.0 inches and a 10 microfinish surface, which reduces wear on the gage member and the workpiece. Each unit ships with a Certificate of Accuracy carrying NIST traceability, confirming conformance to ASME B89.1 standards. Machinists, quality technicians, and metrology professionals use this gage for go inspection routines in production and inspection environments.

This plug gage is used in quality control and dimensional inspection applications across manufacturing, tooling, and machining operations. It is designed for verifying that holes and bores fall within specified tolerance bands during go inspection checks. The gage is also referenced for calibrating and setting micrometers, vernier calipers, and other measuring devices where a known reference diameter is required. It is appropriate for both in-process inspection at the machine and final inspection in a quality lab setting.

Key Features

• 0.228 inches measurement diameter for precise hole and bore go inspection
• 0.0002 inches tolerance conforming to Class ZZ Plus classification
• 10 microfinish surface for reduced wear and accurate seating
• Tool steel construction for durability in production inspection environments
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed as an OEM-style go inspection reference for use with micrometers, vernier calipers, and other measuring devices requiring a traceable reference diameter in precision machining and quality inspection applications.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in accordance with ASME B89.1 gage handling practices. Store the gage in its protective case when not in use to prevent corrosion and surface damage to the lapped gage member. Do not force the gage into an undersized hole, as this will damage the gage surface and invalidate calibration. Clean the gage member with a lint-free cloth before each use and allow it to reach ambient temperature to avoid thermal expansion errors.