Vermont Gage 111332550 Class Zz Plus Plug Gage 0.3255 in

Product Description

The VERMONT GAGE 111332550 is a Class ZZ Plus plug gage designed for precise go-inspection of bored, drilled, and reamed holes. It measures a nominal diameter of 0.3255 inches with a tolerance of 0.0002 inches, making it suitable for applications where dimensional accuracy is critical. Machined from tool steel and finished to a 10 microfinish surface, the gage provides consistent, repeatable contact geometry. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for quality-controlled manufacturing environments. Licensed metrologists, machinists, and quality technicians are the primary users.

This plug gage is used in production and inspection environments where hole diameter conformance must be verified before assembly. Typical applications include go-inspection of machined bores as well as calibration reference checks for setting micrometers, verniers, and other measuring devices. The 0.3255-inch nominal size suits common fractional and letter-size drilled hole applications across general metalworking, aerospace component machining, and precision fabrication shops. Overall length is 2.0 inches, providing a comfortable handling length for bench or in-process inspection work. Conforms to ASME B89.1 standards.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for high-accuracy go-inspection
• Tool steel construction for durability and wear resistance in production use
• 10 microfinish surface for consistent gage-to-bore contact
• NIST-traceable Certificate of Accuracy included for quality documentation
• Meets ASME B89.1 dimensional measurement standards
• Compact 2.0-inch overall length suited for bench and in-process inspection

Compatibility

Designed for go-inspection of holes with a nominal diameter of 0.3255 inches and for use as a reference standard when setting micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by machinists and quality technicians; no power tools or utilities need to be shut off before use. Keep the gage surface clean and lightly oiled when not in use to prevent corrosion of the tool steel. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Store in a protective case away from temperature extremes to maintain dimensional stability.