Spi 19-524-8 Class Zz Minus Plug Pin Gage 0.524 in

Product Description

The SPI 19-524-8 is a Class ZZ minus plug pin gage used to verify bore and hole dimensions in precision inspection and quality control applications. Measuring 0.524 inches in diameter, this go/no-go style gage checks whether a machined feature falls within acceptable dimensional limits. Built from steel, it delivers the rigidity needed for consistent, repeatable measurements. The minus tolerance designation means the gage is manufactured below nominal, with a tolerance of 0.0002 inches, making it suited for inspection tasks that demand close dimensional control. Machinists, quality technicians, and toolroom professionals rely on pin gages like this to confirm part conformance on the shop floor or in a metrology environment.

This gage is used in manufacturing, machining, and inspection settings where hole size verification is required. Typical applications include checking drilled, reamed, or bored features in metal and plastic components. It is appropriate for both production-floor spot checking and bench-level inspection work. The 0.524-inch diameter fits into common bore size ranges encountered in general machining and tooling operations.

Key Features

• Class ZZ minus designation for go/no-go hole inspection within close tolerance ranges
• 0.524-inch nominal diameter for precise bore verification
• Tolerance of 0.0002 inches for accurate dimensional confirmation
• Steel construction provides durability and resistance to wear during repeated use
• Compact and lightweight at 0.2 pounds for easy handling during inspection

Compatibility

Designed as a standard Class ZZ minus plug pin gage for use with compatible gage handle sets in bore inspection and quality control applications.

Installation Notes

Pin gages are typically used by quality technicians and machinists and require no installation in the traditional sense. Before use, clean the gage and the bore to be measured to remove chips, coolant, or debris that could affect readings. Handle gages with care to avoid dropping, which can alter dimensional accuracy. Store pin gages in a protective case away from temperature extremes to maintain calibration integrity.