Vermont Gage 111301250 Class Zz Plus Plug Gage 0.0125 in

Product Description

The VERMONT GAGE 111301250 is a Class ZZ Plus plug gage designed for precise small-bore inspection at a nominal diameter of 0.0125 inches. Built from tool steel and held to a tolerance of 0.0002 inches, this gage delivers the dimensional accuracy required for go inspection of tight-tolerance bores and holes. The 10 microfinish surface finish minimizes wear on the gage and the workpiece during repeated use. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality documentation requirements in production and inspection environments. Metrology technicians, toolroom machinists, and quality control personnel are the primary users of this type of instrument.

This plug gage is suited for use in precision manufacturing and inspection settings where small-diameter bore verification is required. Typical applications include go inspection of drilled, reamed, or broached holes, as well as calibration reference use with set micrometers, verniers, and other measuring devices. The 0.0125-inch diameter range places this gage in wire-gauge and small-bore territory, common in medical device, aerospace, electronics, and general precision machining work. Overall length is 2.0 inches, making it compatible with standard gage handle systems.

Key Features

• Class ZZ Plus tolerance rating: 0.0002 inches for high-accuracy go inspection
• 10 microfinish surface for reduced wear and consistent contact
• Tool steel construction for durability in production inspection environments
• NIST-traceable Certificate of Accuracy included for quality records
• Conforms to ASME B89.1 standards for plain plug gages
• 2.0-inch overall length compatible with standard gage handle systems

Compatibility

Designed for go inspection use with set micrometers, verniers, and other measuring devices as noted in the product application data. Fits standard plug gage handle systems sized for small-diameter wire-type gage blanks.

Installation Notes

Plug gages of this diameter should be handled with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Before use, verify the gage is clean and free of debris that could affect the measurement or damage the bore surface. Store the gage in its protective case when not in use to maintain the calibrated surface finish. Inspection and recalibration intervals should follow your facility quality plan and applicable ASME B89.1 guidelines.