Spi 19-482-9 Class Zz Minus Plug Pin Gage 0.482 in

Product Description

The SPI 19-482-9 is a Class ZZ minus plug pin gage with a nominal diameter of 0.482 inches, manufactured from steel. Plug pin gages are precision measuring tools used to verify hole diameters, bore sizes, and feature locations to tight tolerances. This gage carries a minus tolerance of 0.0002 inches, meaning it is ground to the low end of the Class ZZ tolerance range. Class ZZ is the standard tolerance class for go/no-go gage work in general industrial and dimensional inspection applications. Machinists, quality control technicians, and toolroom personnel use pin gages to confirm that drilled, reamed, or bored holes meet print specifications.

This pin gage is suited for inspection of hole features in machined components across metalworking, fabrication, and manufacturing environments. It is a single pin gage intended for individual use or as part of a larger pin gage set. The 0.482-inch diameter makes it appropriate for checking correspondingly sized holes in production parts, fixtures, or assemblies where dimensional accuracy is critical. It is used in both shop-floor inspection and quality lab settings.

Key Features

• Class ZZ tolerance classification for general-purpose go/no-go hole inspection
• Minus tolerance ground to 0.0002 inches for consistent low-end dimensional accuracy
• 0.482-inch nominal diameter for direct hole size verification
• Steel construction for durability in production and toolroom environments
• Single-pin format for flexible use standalone or within a set

Compatibility

Designed as a standard Class ZZ minus plug pin gage suitable for general-purpose dimensional inspection of 0.482-inch nominal diameter hole features in machined parts and assemblies.

Installation Notes

Pin gages are handled and used by quality control technicians and machinists in inspection workflows. Clean the gage and the bore being checked before use to prevent measurement error from debris or burrs. Store pin gages in a protective case away from moisture to prevent corrosion and maintain calibration accuracy. Do not force a pin gage into an undersized hole, as this can damage both the gage and the workpiece.