Spi 19-884-6 Class Zz Minus Plug Pin Gage 0.884 in

Product Description

The SPI 19-884-6 is a Class ZZ minus plug pin gage used to verify bore and hole diameters in precision machining and inspection applications. Designed to the minus tolerance convention, this gage measures 0.884 inches in diameter with a tolerance of 0.0002 inches, making it suitable for go/no-go inspection routines where close-tolerance verification is required. Constructed from steel, the 19-884-6 provides the hardness and wear resistance expected in a production or toolroom environment. Machinists, quality technicians, and tool-and-die professionals reach for Class ZZ gages when dimensional verification of machined bores must be documented and repeatable.

This gage is appropriate for use in manufacturing facilities, machine shops, and quality control departments handling close-tolerance work. Class ZZ plug gages are widely used for inspection of drilled, reamed, or bored holes in metal and plastic components. The minus tolerance designation means the gage is ground below nominal, which is the standard convention for go-gage members in a two-gage set. This 0.884-inch diameter model fits a specific range of bore inspection tasks where that nominal size is called out on a print or inspection plan.

Key Features

• Class ZZ tolerance grade for general-purpose bore inspection
• Minus tolerance convention: ground to 0.0002 inches below nominal
• 0.884-inch nominal diameter for direct print-to-gage application
• Steel construction provides hardness and dimensional stability under repeated use
• Single-piece package suitable for individual gage sets or replacement members

Compatibility

Designed as an OEM-style replacement or standalone member for Class ZZ plug gage sets requiring a 0.884-inch minus member. Specific system or handle compatibility was not provided in the product data.

Installation Notes

Class ZZ plug gages are used by quality technicians and machinists as hand tools requiring no permanent installation. Before use, clean the gage and bore with a lint-free cloth to remove chips, oil, or debris that could affect the reading. Do not force the gage into a bore; apply only light hand pressure to avoid damage to the gage or the workpiece. Store the gage in its protective case and calibrate periodically per your facility's gage control program to maintain traceability.