Spi 19-588-3 Class Zz Minus Plug Pin Gage 0.588 in

Product Description

The SPI 19-588-3 is a Class ZZ minus plug pin gage machined from steel, designed for go/no-go dimensional inspection of bored holes, drilled passages, and machined features. The gage measures 0.588 inches in diameter and carries a tolerance of 0.0002 inches, conforming to Class ZZ specifications for general-purpose inspection work. Machinists, quality technicians, and tool-and-die professionals use plug pin gages like this one to verify hole diameter acceptance quickly and reliably on the shop floor or in an inspection room without requiring a measuring instrument readout.

This gage is suited for production inspection environments where rapid pass/fail verification of 0.588-inch nominal holes is required. Typical applications include checking machined bores in metal fabrication, verifying drilled holes in production runs, and confirming fit tolerances before assembly. The steel construction holds up under repeated use in light industrial and precision manufacturing settings. Class ZZ is the standard commercial tolerance class for general-purpose plug gages used outside of master or reference gage applications.

Key Features

• Class ZZ minus tolerance class for general-purpose hole inspection
• 0.588-inch nominal diameter for direct go/no-go hole verification
• Tolerance of 0.0002 inches for consistent, repeatable measurement results
• Steel construction provides durability through repeated inspection cycles
• Compact single-pin format suits hand-held use at the machine or inspection bench

Compatibility

Designed as a general-purpose Class ZZ minus plug pin gage for verifying 0.588-inch nominal diameter holes in standard production and inspection applications.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists; no installation trade license is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion and maintain dimensional stability. Never force the gage into an undersized hole, as this can damage the gage surface and introduce measurement error. Store in a protective case away from temperature extremes to preserve calibration integrity.