Spi 19-964-6 Class Zz Minus Plug Pin Gage 0.964 in

Product Description

The SPI 19-964-6 is a Class ZZ minus plug pin gage designed to verify bore and hole diameters with high-precision tolerance control. It measures a nominal diameter of 0.964 inches with a minus tolerance of 0.000200 inches, making it suitable for go/no-go inspection workflows in machining and fabrication environments. Constructed from steel, this pin gage delivers the dimensional stability required for accurate, repeatable measurement on the shop floor or in a quality control setting. Metrology technicians, tool-and-die professionals, and quality inspectors are the primary users of this type of instrument.

This pin gage is applied in inspection and quality control operations where bore diameter verification is required. It is well suited for use in manufacturing facilities, machine shops, and production environments where hole tolerances must be confirmed before or after machining. Class ZZ gages are generally used for inspection of commercial-grade work where moderate tolerance control is specified. The 0.964-inch diameter makes this gage appropriate for applications involving medium-bore cylindrical features.

Key Features

• Nominal measurement diameter of 0.964 inches for precise bore inspection
• Class ZZ minus tolerance of 0.000200 inches for controlled fit verification
• Steel construction for dimensional stability and wear resistance
• Designed for go/no-go inspection use in production and quality control settings
• Single-piece packaging with a minimum order quantity of 1

Compatibility

Designed as a standard Class ZZ minus plug pin gage suitable for use with common gage handle sets and pin gage sets sized for the 0.964-inch range in general industrial inspection applications.

Installation Notes

Pin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in a protective case or holder when not in use to avoid damage to the precision-ground surface. Verify that the gage and the workpiece have equalized to the same ambient temperature before measurement to avoid thermal expansion errors. Periodic calibration against a certified master is recommended to confirm continued accuracy.