Spi 19-562-8 Class Zz Minus Plug Pin Gage 0.562 in

Product Description

The SPI 19-562-8 is a Class ZZ minus plug pin gage with a 0.562-inch nominal diameter, manufactured from steel. Plug pin gages are used to verify that a hole or bore meets a specified minimum size by confirming the gage will pass through without force. The minus designation indicates the gage is ground to the lower limit of the Class ZZ tolerance, providing a go-type check for hole acceptance. With a tolerance of 0.0002 inches, this gage is suited to quality control and inspection work in machining, fabrication, and general manufacturing environments. It is typically used by machinists, quality technicians, and inspection personnel.

This gage is applied in shop-floor inspection and incoming/outgoing quality control processes where verifying hole diameter to a 0.562-inch nominal is required. Class ZZ is the most common commercial-grade classification for plug gages and is appropriate for general-tolerance work rather than precision or master-grade inspection. Suitable for use with ferrous and non-ferrous workpieces across a range of industries including metal fabrication, automotive, and general manufacturing.

Key Features

• Class ZZ minus designation for go-type hole acceptance verification
• 0.562-inch nominal diameter for direct size inspection
• 0.0002-inch tolerance for reliable commercial-grade accuracy
• Steel construction for durability and wear resistance in shop environments
• Single-piece unit with package quantity of one

Compatibility

Designed as a commercial-grade Class ZZ plug pin gage for use in standard hole inspection applications requiring a 0.562-inch nominal diameter check.

Installation Notes

Plug pin gages should be handled by quality technicians or machinists familiar with gage use and care procedures. Clean both the gage and the workpiece bore before use to prevent false readings from debris or burrs. Do not force the gage into a hole; if it does not pass freely, the hole is undersize. Store gages in a protective case away from moisture and abrasive surfaces to maintain calibration integrity.