Spi 19-896-0 Class Zz Minus Plug Pin Gage 0.896 in Steel

Product Description

The SPI 19-896-0 is a Class ZZ minus plug pin gage designed to verify bore and hole diameters in precision machining and inspection applications. With a nominal diameter of 0.896 inches and a tolerance of 0.0002 inches, this gage provides go/no-go style dimensional verification at the tighter end of general-purpose inspection work. Constructed from steel, it is built to withstand repeated shop-floor use while maintaining dimensional stability. Machinists, quality control technicians, and toolroom professionals use plug gages like this one to confirm that drilled, reamed, or bored features meet specified tolerances before parts advance through the production process.

Class ZZ minus plug gages are suited for general-purpose inspection of production parts where moderate tolerance verification is required. The minus designation means the gage is manufactured to the low side of the nominal diameter, making it appropriate for go-gage applications. This gage is typically used in manufacturing shops, machine shops, and inspection departments working with metal or plastic components that require hole diameter confirmation to drawing specifications.

Key Features

• 0.896 inch nominal diameter for precise hole and bore verification
• Class ZZ tolerance classification for general-purpose inspection use
• Minus designation positions the gage on the low side of nominal for go-gage applications
• Steel construction provides durability and dimensional stability under repeated use
• 0.0002 inch tolerance supports close-tolerance inspection work

Compatibility

Designed as a general-purpose go-style plug pin gage for use in standard bore and hole diameter inspection setups where a 0.896 inch nominal diameter is specified.

Installation Notes

Plug pin gages are handled and used by machinists and quality technicians during inspection procedures. Clean the gage and the feature being measured before use to prevent debris from affecting the reading. Never force a plug gage into a hole; light hand pressure is sufficient, and forcing can damage both the gage and the workpiece. Store the gage in a protective case away from other metal tools to prevent nicks and wear that could affect accuracy.