Vermont Gage 111135900 Class Zz Plus Plug Gage 0.359 in

Product Description

The VERMONT GAGE 111135900 is a Class ZZ Plus plug gage manufactured from tool steel for precise bore and hole diameter inspection. Designed to measure a nominal diameter of 0.359 inches, this gage holds a tolerance of 0.0002 inches and features a 10 microfinish surface to minimize wear and ensure repeatable contact with the workpiece. Overall length is 2.0 inches, making it compact for bench and floor use. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for calibrated tooling. Machinists, quality technicians, and metrology lab personnel rely on this type of gage for fast, definitive go inspection decisions.

This plug gage is suited for go inspection of drilled, reamed, or bored holes in production and inspection environments. It is also used as a reference standard when setting micrometers, verniers, and other measuring devices to a known diameter. Typical applications include incoming inspection, first-article verification, and in-process quality control across metalworking, machining, and precision manufacturing operations. The Class ZZ Plus designation indicates the gage meets ASME B89.1 dimensional and tolerance standards for general-purpose inspection gaging.

Key Features

• Nominal measurement diameter of 0.359 inches with a 0.0002 inch tolerance
• Tool steel construction for hardness and long service life
• 10 microfinish surface reduces friction and wear during repeated use
• Includes Certificate of Accuracy with NIST traceability for documented calibration compliance
• Conforms to ASME B89.1 standards for dimensional gaging
• Compact 2.0 inch overall length suits both bench and in-line inspection use

Compatibility

Designed as a go-type inspection gage for bores and holes with a nominal diameter of 0.359 inches. Also suitable for use as a setting standard for micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists and require no permanent installation. Store the gage in its protective case when not in use to prevent damage to the lapped surface. Avoid dropping or striking the gage, as impact can alter the lapped diameter and invalidate calibration. Periodically verify the gage against its NIST-traceable certificate as part of a routine calibration program.