Spi 19-332-6 Class Zz Minus Plug Pin Gage 0.332 in

Product Description

The SPI 19-332-6 is a Class ZZ minus plug pin gage machined from steel for dimensional inspection of hole diameters. It is used to verify that a 0.332-inch diameter hole falls within specified tolerance limits. At a tolerance of 0.0002 inches, this gage meets Class ZZ standards, which are the standard tolerance class for general-purpose go/no-go inspection in production and maintenance environments. Machinists, tool and die technicians, and quality control inspectors use plug pin gages as part of routine dimensional verification work on machined parts and assemblies.

This gage is suited for shop-floor and inspection-room use wherever 0.332-inch diameter holes require verification against engineering tolerances. It is appropriate for both high-volume production inspection and low-volume maintenance or repair settings. The minus designation means the gage is ground to the lower boundary of the nominal diameter, making it a no-go member in a standard go/no-go gage pair or a standalone check for minimum hole size. Steel construction provides durability under repeated handling in industrial environments.

Key Features

• Class ZZ tolerance of 0.0002 inches for general-purpose hole inspection
• Minus designation checks the lower limit of a 0.332-inch diameter hole
• Steel construction resists wear during repeated production or maintenance use
• Compact and lightweight at 0.2 pounds for easy handling at the point of inspection
• Single-piece design with no adjustable components to drift or require calibration setup

Compatibility

Designed as a general-purpose Class ZZ minus plug pin gage for inspection of 0.332-inch nominal diameter holes in machined components across manufacturing, maintenance, and repair applications.

Installation Notes

Plug pin gages are handled by machinists and quality control technicians and require no power or mechanical installation. Clean the gage and the hole being checked before use to avoid false readings from chips, burrs, or contamination. Store the gage in its protective case when not in use to prevent surface damage that could affect measurement accuracy. Gages should be periodically re-certified against traceable standards per your facility quality program.