Vermont Gage 111285300 Class Zz Minus Plug Pin Gage 0.853 in

Product Description

The VERMONT GAGE 111285300 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore and hole dimensions in precision inspection work. With a measurement diameter of 0.8530 inches and an overall length of 2 inches, this pin gage is built for NoGo inspection applications where confirming a feature does not exceed its maximum allowable size is critical. Tolerance is held to 0.0002 inches, meeting Class ZZ standards for go/no-go gauging. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in calibrated inspection environments. Machinists, quality control technicians, and tool room professionals are the primary users of this type of instrument.

This pin gage is suited for use in dimensional inspection of machined bores, drilled holes, and precision-fit features in both production and toolroom settings. It is commonly used alongside micrometers, vernier calipers, and other measuring devices to verify that a hole or bore falls within specified tolerance limits. The NoGo designation means this gage is intended to confirm that a feature does not pass a maximum material condition check. Typical applications include incoming inspection, in-process quality checks, and calibration setups in manufacturing and fabrication facilities.

Key Features

• Measurement diameter of 0.8530 inches for precise bore and hole inspection
• Class ZZ Minus tolerance of 0.0002 inches for go/no-go gauging accuracy
• Steel construction for durability in production and toolroom use
• Overall length of 2 inches for ease of handling and insertion
• Includes Certificate of Accuracy with NIST Traceability for calibration documentation
• Designed for NoGo inspection, set micrometers, verniers, and other measuring devices

Compatibility

Designed for use as a NoGo plug gage in standard precision inspection workflows involving micrometers, verniers, and comparable measuring instruments where Class ZZ gauging tolerances are required.

Installation Notes

Pin gages are handled and used by quality control technicians and machinists following standard metrology practices. Store and handle this gage with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Do not force the gage into a bore; a NoGo gage should not pass a correctly sized feature, and forcing can damage both the gage and the workpiece. Periodic cleaning and re-certification against NIST-traceable standards is recommended to maintain measurement integrity.