Vermont Gage 111179200 Class Zz Plus Plug Gage 0.792 in

Product Description

The VERMONT GAGE 111179200 is a Class ZZ Plus plug gage manufactured from tool steel, designed for precise dimensional inspection of bored holes, slots, and machined openings. It measures a nominal diameter of 0.792 inches with a tolerance of 0.0002 inches, making it suitable for high-accuracy Go inspection tasks. The ground and lapped gauging surface carries a 10 microfinish rating, ensuring consistent contact with the workpiece. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements common in quality-controlled manufacturing environments. Machinists, tool-and-die makers, and quality control technicians rely on this type of gage for fast, reliable attribute inspection on the shop floor.

This plug gage is intended for Go inspection use in production and inspection environments where bore diameter conformance must be verified quickly and repeatedly. Typical applications include verifying machined holes in metal and plastic components, calibrating or cross-checking setting micrometers, verniers, and other measuring devices. The 2.0-inch overall length provides comfortable handling during single-handed use. It is well suited for both job-shop and high-volume production inspection settings where dimensional accuracy to ASME B89.1 standards is required.

Key Features

• 0.792-inch nominal gauging diameter with 0.0002-inch tolerance for tight-tolerance Go inspection
• 10 microfinish surface for consistent, accurate contact with gauged surfaces
• Tool steel construction for durability and wear resistance in production environments
• Complies with ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for quality documentation requirements
• 2.0-inch overall length for practical single-hand handling

Compatibility

Designed for Go inspection of bored holes and machined features at 0.792-inch nominal diameter. Also suitable for setting and verifying micrometers, verniers, and other precision measuring devices requiring a Class ZZ Plus reference standard.

Installation Notes

Plug gages are handled and used by machinists, metrologists, and quality control inspectors — not installed in the traditional sense, but proper care during use is essential to accuracy. Clean the gauging surfaces and the bore being inspected before use to remove chips, oil, and debris. Do not force the gage; apply only light, consistent hand pressure to avoid damage to the lapped surface or the workpiece. Store the gage in its protective case when not in use to prevent corrosion and surface damage to the tool steel.