Spi 19-209-6 Class Zz Minus Plug Pin Gage 0.209 in

Product Description

The SPI 19-209-6 is a Class ZZ minus plug pin gage machined from steel and used to verify bore and hole diameters in precision inspection and quality control work. It measures 0.209 inches in diameter with a tolerance of 0.0002 inches, conforming to Class ZZ specifications for general-purpose dimensional inspection. This gage is a go/no-go style instrument designed for checking whether a hole falls within acceptable tolerance limits. Machinists, toolmakers, and quality technicians use plug gages like this one during in-process and final inspection of drilled, reamed, or bored features.

The 19-209-6 is suited for use in machine shops, manufacturing cells, and inspection departments where consistent bore verification is required. It is appropriate for both production floor use and receiving inspection, particularly when checking small-diameter holes in machined components. The minus designation indicates the gage is ground to the lower boundary of the tolerance band, which is standard practice for go-gage applications in Class ZZ gaging.

Key Features

• 0.209 inches nominal diameter for direct bore inspection of that size
• Class ZZ tolerance class suited for general-purpose inspection work
• Minus designation ground to the lower tolerance boundary per Class ZZ convention
• 0.0002 inches tolerance for reliable dimensional verification
• Steel construction for wear resistance and dimensional stability
• Single-piece packaging with a minimum order quantity of one

Compatibility

Designed as an OEM-style replacement and standard plug gage for use in any inspection setup requiring a 0.209 inch diameter Class ZZ minus plug gage.

Installation Notes

Plug pin gages are hand-held precision instruments and require no mechanical installation. Handle with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store in a protective case away from temperature extremes to maintain dimensional accuracy. Calibration against a traceable standard is recommended before first use and at regular intervals per your quality management procedures.