Vermont Gage 111181900 Class Zz Plus Plug Gage 0.819 in

Product Description

The VERMONT GAGE 111181900 is a Class ZZ Plus plug gage designed for precise Go inspection of bored holes, machined bores, and similar internal features. Built from tool steel, this fixed-limit gage measures a nominal diameter of 0.819 inches with a tolerance of 0.0002 inches, making it suitable for quality control workflows that demand repeatable, traceable measurements. The 10 microfinish surface reduces wear during repeated gauging passes. Each unit ships with a Certificate of Accuracy with NIST Traceability, supporting compliance documentation for calibrated tool inventories. Machinists, quality technicians, and tool-room professionals are the primary users of this gage.

This plug gage is used in machine shops, manufacturing facilities, and inspection departments where internal bore dimensions must be verified to close tolerances. It is suited for Go inspection tasks and can also serve as a reference standard when setting micrometers, verniers, and other measuring devices. The overall length of 2.0 inches makes it easy to handle for bench-top and in-process inspection. Conformance to ASME B89.1 ensures the gage meets recognized dimensional metrology standards for fixed-limit gages.

Key Features

• 0.819 inches nominal diameter with 0.0002 inches Class ZZ Plus tolerance
• 10 microfinish surface for reduced wear and consistent gauging contact
• Tool steel construction for durability in production inspection environments
• Includes Certificate of Accuracy with NIST Traceability for calibration records
• Conforms to ASME B89.1 dimensional metrology standards
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed as a fixed-limit Go plug gage for verifying internal bore diameters at 0.819 inches nominal; also suitable for use as a reference standard when setting micrometers, verniers, and comparable measuring devices per the application data provided.

Installation Notes

Plug gages of this type are handled and stored by quality technicians and tool-room personnel, not field installers. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Never force the gage into a bore; apply only light, consistent hand pressure to avoid measurement error or surface damage. Store in the provided case or a dedicated gage holder away from abrasive materials to preserve the microfinish and dimensional integrity.