Vermont Gage 111117500 Class Zz Plus Plug Gage 0.175 in

Product Description

The VERMONT GAGE 111117500 is a Class ZZ Plus plug gage designed for precise hole and bore measurement in quality-control and metrology applications. Manufactured from tool steel, it measures a nominal diameter of 0.175 inches with a tolerance of 0.0002 inches. The gage features a 10 microfinish surface, supporting accurate, repeatable contact during inspection. A Certificate of Accuracy with NIST Traceability is included, making it suitable for shops and labs that require documented calibration records. Licensed metrologists, quality technicians, and machinist-level inspectors typically use this gage as part of a go/no-go inspection routine.

This plug gage is used in dimensional inspection environments where small-diameter bores must be verified against tight tolerances. Typical applications include go inspection checks on drilled, reamed, or precision-bored holes. It is also referenced when setting micrometers, vernier calipers, and other measuring devices to a known diameter. The 0.175-inch size serves applications in precision machining, tooling, and light manufacturing where sub-thousandth accuracy is required. Its compact 2.0-inch overall length suits benchtop and in-process inspection equally well.

Key Features

• 0.175-inch nominal measurement diameter with 0.0002-inch tolerance for tight go/no-go inspection
• 10 microfinish surface for consistent, low-friction contact during gauging
• Tool steel construction provides hardness and wear resistance in regular shop use
• Meets ASME B89.1 standard for dimensional gage accuracy
• Includes Certificate of Accuracy with NIST Traceability for calibration documentation
• 2.0-inch overall length for easy handling at the inspection bench or point of manufacture

Compatibility

Designed for use in go inspection routines and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a precision small-diameter reference.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no permanent installation is required. Store the gage in its protective case when not in use to prevent surface damage to the lapped finish. Clean contact surfaces with a lint-free cloth before use; oil, chips, or debris on the gage or the workpiece bore can introduce false readings. Follow your shop calibration schedule and re-verify against the included NIST-traceable certificate at the interval required by your quality system.