Spi 19-264-1 Class Zz Minus Plug Pin Gage 0.264 in

Product Description

The SPI 19-264-1 is a Class ZZ minus plug pin gage with a 0.264-inch nominal diameter, manufactured from steel for dimensional inspection work. It is used to verify hole sizes and bore diameters to a tolerance of 0.0002 inches, confirming that a feature is within acceptable limits. Class ZZ is the standard commercial grade for general-purpose go/no-go gauging applications. Machinists, quality control technicians, and toolroom professionals use pin gages like this one when checking production parts, fixtures, and machined bores for conformance to print dimensions.

This gage is suited for shop-floor and toolroom inspection environments where precise hole verification is required. The minus designation means the gage is ground below nominal, making it appropriate as a go-side gage in a go/no-go setup or for independent dimensional verification. It fits standard pin gage handles and is compatible with typical bench inspection setups found in manufacturing, metalworking, and machine shops.

Key Features

• 0.264-inch nominal diameter for direct bore and hole verification
• Class ZZ tolerance grade suits general commercial inspection applications
• Minus designation provides go-side gauging functionality
• Steel construction for durability and dimensional stability
• 0.0002-inch tolerance for reliable close-tolerance inspection

Compatibility

Designed as a standard Class ZZ minus plug pin gage compatible with conventional pin gage handles and inspection setups used in general machining and quality control applications.

Installation Notes

Pin gages are handled by quality control and toolroom personnel and do not require electrical isolation or mechanical installation. Store gages in a protective case away from moisture and temperature extremes to prevent corrosion and dimensional drift. Clean the gage and the bore being checked before use to avoid false readings from chips or debris. Handle with care to avoid dropping, which can alter the ground diameter and render the gage out of tolerance.