Vermont Gage 111330750 Class Zz Plus Plug Gage 0.3075 in

Product Description

The VERMONT GAGE 111330750 is a Class ZZ Plus plug gage machined from tool steel and used to verify bore and hole dimensions to tight tolerances. It measures 0.3075 inches in diameter with a tolerance of 0.0002 inches, making it suitable for precision inspection work where dimensional accuracy is critical. The gage carries a 10 microfinish surface finish and ships with a Certificate of Accuracy with NIST traceability, confirming it meets ASME B89.1 standards. Machinists, quality technicians, and metrology professionals use this type of gage in production and incoming inspection settings.

This plug gage is suited for go inspection applications on precision-machined components. It can also be used to calibrate and verify the accuracy of set micrometers, verniers, and other measuring devices. The 0.3075-inch diameter targets bore sizes common in light machining and instrument applications. Overall length is 2.0 inches, providing a comfortable grip during single-handed pass-fail checks on the shop floor or in a quality lab.

Key Features

• Class ZZ Plus tolerance grade: 0.0002 inches, suitable for go inspection use
• 10 microfinish surface finish for consistent, repeatable contact
• Tool steel construction for durability under repeated use
• Includes Certificate of Accuracy with NIST traceability
• Complies with ASME B89.1 dimensional standard
• Compact 2.0-inch overall length for easy single-hand operation

Compatibility

Designed for go inspection of bores and holes at 0.3075 inches diameter, and for use as a reference standard with set micrometers, verniers, and other calibrated measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists and require no permanent installation. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the bore being checked before use to remove chips, oil, or debris that could affect the measurement result. Do not force the gage through a tight bore, as this can damage the gage surface and invalidate its tolerance class.