Spi 19-453-0 Class Zz Minus Plug Pin Gage 0.453 in

Product Description

The SPI 19-453-0 is a Class ZZ minus plug pin gage with a 0.453-inch nominal diameter, manufactured from steel for consistent dimensional inspection work. Class ZZ is the standard tolerance grade for general-purpose go/no-go gauging in production and maintenance environments. This gage carries a minus tolerance of 0.0002 inches, meaning the actual pin diameter is held below the nominal dimension to the minus side. Machinists, quality control technicians, and tool-room professionals use plug pin gages like this one to verify bore and hole diameters to tight dimensional standards.

The 19-453-0 is suited for shop-floor and inspection-room use wherever a 0.453-inch hole, bore, or feature requires dimensional verification. Typical applications include incoming inspection, in-process quality checks, and fixture verification across general manufacturing, maintenance, and repair operations. Its steel construction holds up to repeated use in production settings without significant wear under normal handling conditions.

Key Features

• Class ZZ tolerance grade for general-purpose go/no-go dimensional inspection
• Minus tolerance configuration: pin diameter held to minus 0.0002 inches from nominal
• 0.453-inch nominal diameter for direct verification of matching bores and holes
• Steel construction for durability in shop-floor and inspection environments
• Single-piece package for individual replacement or supplementing an existing gage set

Compatibility

Designed as a go/no-go style plug pin gage for use with standard handle holders accepting 0.453-inch class pin gages. Verify handle compatibility with your existing gage set before use.

Installation Notes

Plug pin gages are handled and used by machinists and quality technicians following standard metrology practices. Store the gage in its protective case or sleeve when not in use to prevent damage to the ground surface. Clean the pin and the bore being checked before gauging to avoid false readings caused by debris or oil film. Do not force the pin into an undersized bore, as this can damage both the gage and the workpiece.