Vermont Gage 111144800 Class Zz Plus Plug Gage 0.448 in

Product Description

The VERMONT GAGE 111144800 is a Class ZZ Plus plug gage machined from tool steel for precise dimensional inspection of bored holes, drilled openings, and machined features. Designed to 0.448 inches nominal diameter with a tolerance of 0.0002 inches, this gage delivers repeatable Go inspection results in production and quality control environments. The working surfaces carry a 10 microfinish, reducing wear and ensuring consistent contact across repeated measurements. A Certificate of Accuracy with NIST traceability is included, supporting documented quality processes and audit requirements. Machinists, tool-and-die technicians, and quality inspection personnel are the primary users.

This plug gage is suited for Go inspection of holes nominally sized at 0.448 inches in diameter on machined components, fabricated assemblies, and precision parts. It is also appropriate for setting and verifying micrometers, verniers, and other measuring devices requiring a traceable reference standard. The tool steel construction makes it durable enough for regular use on a shop floor or in a metrology lab. Applications span general metalworking, manufacturing quality control, and any setting where ASME B89.1 dimensional standards must be met.

Key Features

• 0.448 inch nominal measurement diameter with 0.0002 inch Class ZZ Plus tolerance
• 10 microfinish surface on measuring surfaces for reduced wear and consistent contact
• Tool steel construction for durability in production and inspection environments
• Includes Certificate of Accuracy with NIST traceability for documented quality programs
• Conforms to ASME B89.1 standards for dimensional gaging
• Suitable for Go inspection and as a reference standard for setting measuring devices

Compatibility

Designed for Go inspection of holes at 0.448 inches nominal diameter and for use as a reference standard when setting micrometers, verniers, and other calibrated measuring devices in metalworking and precision manufacturing applications.

Installation Notes

Plug gages are handled and used by quality inspection technicians and machinists — no installation in the traditional mechanical sense applies. Store the gage in its protective case when not in use and handle it with clean, dry hands or cotton inspection gloves to prevent corrosion from skin oils. Never force the gage through an undersized hole; forcing damages both the gage and the workpiece. Clean contact surfaces before each use with a lint-free cloth to maintain measurement accuracy.