Vermont Gage 111152900 Class Zz Plus Plug Gage 0.529 in

Product Description

The VERMONT GAGE 111152900 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bores, holes, and internal features. Manufactured from tool steel with a 10 microinch surface finish, this gage delivers a measurement diameter of 0.529 inches with a tolerance of 0.0002 inches. At an overall length of 2.0 inches, it is sized for bench-top and in-process inspection work. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality-controlled environments where documented traceability is required. Machinists, quality technicians, and metrology professionals use this type of gage to verify hole diameter conformance quickly and reliably.

This plug gage is intended for go inspection applications, confirming that a hole or bore meets the minimum acceptable size before assembly or further machining. It is also used to set and verify the calibration of micrometers, verniers, and other measuring devices. Typical installation environments include machine shops, manufacturing quality departments, and tool rooms handling precision mechanical components where ASME B89.1 gage standards apply.

Key Features

• Measurement diameter of 0.529 inches for precise bore and hole inspection
• Class ZZ Plus tolerance of 0.0002 inches per ASME B89.1 standard
• 10 microinch surface finish for accurate, repeatable contact measurement
• Tool steel construction for hardness and wear resistance in daily use
• Includes Certificate of Accuracy with NIST traceability for documentation requirements
• Overall length of 2.0 inches suits standard bench and in-process inspection setups

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage for go inspection use with micrometers, verniers, and other measuring devices requiring a 0.529-inch diameter reference standard.

Installation Notes

Plug gages are handled and applied by quality technicians and machinists; no mechanical installation is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Do not force the gage into a bore that offers excessive resistance, as this can damage both the gage and the workpiece. Store in the provided case or a protective sleeve to preserve the surface finish and dimensional integrity.