Spi 19-733-5 Class Zz Minus Plug Pin Gage 0.733 in

Product Description

The SPI 19-733-5 is a Class ZZ minus plug pin gage used to verify bore and hole diameters to a high degree of dimensional accuracy. This gage measures 0.733 inches in diameter and is manufactured from steel for durability and dimensional stability. The minus tolerance of 0.0002 inches ensures the gage falls just below nominal size, which is the standard practice for go-gage and inspection applications. Machinists, quality control technicians, and tool-room professionals use plug pin gages during incoming inspection, in-process checks, and final part verification.

This gage is suited for use in machine shops, manufacturing facilities, and inspection departments where precise hole diameter verification is required. It is appropriate for both production-floor spot checks and formal quality inspection routines. The 0.733-inch diameter makes it a direct-reference tool for holes and bores held to that nominal size. Class ZZ gages are generally used for commercial-grade inspection work rather than laboratory or master-gage applications.

Key Features

• 0.733-inch nominal diameter for direct bore and hole verification
• Class ZZ tolerance grade suited for commercial inspection use
• Minus tolerance of 0.0002 inches ensures sizing falls below nominal
• Steel construction for wear resistance and dimensional stability
• Single-piece design with no adjustable components

Compatibility

Designed as a standard plug pin gage for verifying holes and bores with a nominal diameter of 0.733 inches in general commercial inspection and machining applications.

Installation Notes

Plug pin gages are handled and used by machinists and quality technicians — no installation in the traditional sense is required. Before use, clean both the gage and the bore being checked to remove chips, oil, and debris that could affect the measurement. Do not force the gage into a hole; excessive force can damage the gage or the workpiece and will produce unreliable readings. Store the gage in a protective case away from other tooling to prevent surface damage that would alter its calibrated size.