Spi 19-465-4 Class Zz Minus Plug Pin Gage 0.465 in

Product Description

The SPI 19-465-4 is a Class ZZ minus plug pin gage used to verify bore and hole dimensions in precision machining and inspection work. With a nominal diameter of 0.465 inches and a minus tolerance of 0.0002 inches, this gage provides a reliable go/no-go reference for quality control applications. The steel construction delivers the hardness and dimensional stability required for repeated use in shop and inspection environments. Machinists, quality technicians, and tool-room professionals use plug pin gages like this one to confirm that drilled, reamed, or bored features meet print tolerances before parts advance through production.

Class ZZ plug gages are suited for inspection of production parts where working-gage tolerances are acceptable. The 19-465-4 fits standard applications in general manufacturing, job shops, and inspection departments checking hole diameters close to 0.465 inches. The minus designation means the gage is ground to the low side of the nominal diameter, functioning as a go-type reference in typical plug gage usage. It is well-suited for benchtop inspection and in-process checking on machined components in steel, aluminum, and similar materials.

Key Features

• Nominal diameter of 0.465 inches for direct hole verification
• Class ZZ accuracy with a minus tolerance of 0.0002 inches
• Steel construction for hardness and dimensional stability
• Single-piece gage format suited for benchtop and floor inspection
• Consistent with standard go/no-go plug gage inspection practice

Compatibility

Designed as a standard Class ZZ minus plug pin gage for use in general-purpose inspection of holes and bores nominally sized at 0.465 inches in diameter.

Installation Notes

Plug pin gages are handled and used by machinists and quality control technicians following standard metrology practices. Store the gage in a protective case away from other tooling to prevent contact damage to the gaged surface. Clean the gage and bore before use to remove chips, oil, or debris that could affect the reading. Never force a plug gage into a bore; if resistance is encountered, stop and evaluate the hole before proceeding.