Vermont Gage 111130500 Class Zz Plus Plug Gage 0.305 in

Product Description

The VERMONT GAGE 111130500 is a Class ZZ Plus plug gage used to verify bore and hole dimensions in precision inspection work. It measures a nominal diameter of 0.305 inches with a tolerance of 0.0002 inches, making it suitable for go inspection applications where tight dimensional control is required. Constructed from tool steel and finished to a 10 microfinish surface quality, this gage delivers consistent, repeatable results. It ships with a Certificate of Accuracy that carries NIST traceability, supporting quality documentation requirements. Machinists, toolmakers, and quality control technicians typically use this type of gage on the shop floor or in the inspection room.

This plug gage is designed for go inspection of holes and bores machined to a 0.305-inch nominal diameter. It is also used to calibrate and verify the accuracy of setting micrometers, verniers, and other measuring devices. Applications span general manufacturing, precision machining, and dimensional inspection in both job shop and production environments. The included NIST-traceable certificate makes it compatible with quality systems that require documented gage calibration records.

Key Features

• 0.305-inch nominal measurement diameter with 0.0002-inch tolerance for precise go inspection
• 10 microfinish surface finish reduces wear and ensures accurate contact with the workpiece
• Tool steel construction provides durability and dimensional stability under regular shop use
• NIST-traceable Certificate of Accuracy included for quality system documentation
• Conforms to ASME B89.1 standards for plain limit gages
• Compact 2.0-inch overall length for easy handling in tight inspection setups

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage for go inspection of 0.305-inch nominal diameter bores, and for use as a setting standard with micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists during dimensional inspection. Clean and deburr the bore before gaging to avoid false readings and premature gage wear. Store the gage in its case when not in use to protect the finish and maintain calibration integrity. Avoid dropping or forcing the gage into an undersized bore, as impact or excessive force can alter the gage dimension and void traceability.