Spi 19-807-7 Class Zz Minus Plug Pin Gage 0.807 in

Product Description

The SPI 19-807-7 is a Class ZZ minus plug pin gage used to verify bore and hole dimensions in precision machining and inspection applications. Manufactured from steel, this pin gage measures a nominal diameter of 0.807 inches with a minus tolerance of 0.0002 inches. Class ZZ is the standard tolerance class for general-purpose go/no-go inspection work in production environments. Machinists, quality control technicians, and tool room personnel use plug pin gages like this to confirm that drilled, reamed, or bored holes fall within specified tolerances before parts advance through the production process.

This gage is suited for use on the shop floor, in inspection rooms, and in tool cribs wherever dimensional verification of 0.807-inch diameter holes is required. It is appropriate for both ferrous and non-ferrous workpieces in light manufacturing, job shop machining, and general metalworking operations. The minus designation means the gage is ground to the lower end of the tolerance band, making it suitable for go-gage applications where confirming minimum acceptable hole size is the priority.

Key Features

• Class ZZ tolerance class for general-purpose production inspection
• Minus plug configuration for go-gage dimensional verification
• 0.807-inch nominal diameter with 0.0002-inch tolerance
• Steel construction for durability in shop floor environments
• Single-piece package quantity for individual tooling procurement

Compatibility

Designed as a general-purpose plug pin gage for use with standard gage handle sets accepting 0.807-inch diameter pin gages in Class ZZ applications.

Installation Notes

Plug pin gages are handled and used by machinists and quality inspection technicians. Before use, clean the gage and the bore being checked to remove chips, coolant, and debris that could affect the measurement reading. Do not force the pin into a hole; excessive insertion force can damage the gage or the workpiece surface. Store pin gages in a protective case or roll to prevent nicks and corrosion that would compromise dimensional accuracy.