Spi 19-715-2 Class Zz Minus Plug Pin Gage 0.715 in

Product Description

The SPI 19-715-2 is a Class ZZ minus plug pin gage with a 0.715-inch nominal diameter, manufactured from steel. Plug pin gages are precision hand tools used to verify that a drilled, bored, or reamed hole falls within a specified dimensional tolerance. The Class ZZ designation indicates a commercial-grade tolerance appropriate for general inspection work, while the minus configuration means the gage is ground to the lower end of the tolerance range. The 19-715-2 carries a tolerance of 0.0002 inches and weighs approximately 0.2 pounds, making it easy to handle during production-floor or shop inspection.

This gage is suited for machinists, tool-and-die workers, quality control inspectors, and maintenance technicians who need a reliable go or no-go reference for hole diameter verification. It is commonly used in machine shops, fabrication facilities, and maintenance departments where consistent hole quality must be confirmed before assembly. At 0.715 inches, this size is typical in applications involving shaft fits, bushing bores, and precision drilled features in metalworking and mechanical assembly operations.

Key Features

• Class ZZ tolerance classification for commercial-grade hole inspection
• Minus configuration ground to the lower end of the tolerance range
• 0.0002-inch tolerance for reliable dimensional verification
• 0.715-inch nominal diameter covers a common bore size in mechanical assembly
• Steel construction for durability under repeated shop use
• Lightweight at 0.2 pounds for comfortable one-hand use

Compatibility

Designed as a standard Class ZZ minus plug pin gage for verifying 0.715-inch nominal diameter bores in general machining and inspection applications.

Installation Notes

Plug pin gages are used by hand insertion only — never force a gage into a bore or use tools to drive it, as this will damage both the gage and the workpiece. Clean the bore and gage surface before each use to ensure accurate readings and prevent premature wear. Store the gage in a protective case away from other metal tools to avoid surface damage that would compromise measurement accuracy. Calibration against a traceable standard should be performed periodically per your facility quality plan.