Spi 19-417-5 Class Zz Minus Plug Pin Gage 0.417 in

Product Description

The SPI 19-417-5 is a Class ZZ minus plug pin gage machined from steel, designed for checking hole diameters in production and inspection environments. With a nominal diameter of 0.417 inches and a tolerance of 0.0002 inches, this gage provides reliable go/no-go verification for dimensional quality control. The minus designation means the gage is manufactured to the lower end of the tolerance range, making it suitable for confirming minimum hole size acceptance. Machinists, tool and die makers, and quality control technicians use plug gages like this one as part of standard inspection routines on the shop floor or in a metrology lab.

This pin gage is used in manufacturing and precision machining applications where hole diameter verification is required. It is appropriate for both production-line inspection and incoming quality checks on drilled, reamed, or bored holes. The 0.417 inch diameter fits into a standard gage handle or is used as a standalone pin depending on the shop setup. It is suited to light industrial, aerospace, automotive, and general metalworking inspection tasks where Class ZZ tolerance is acceptable per applicable dimensional standards.

Key Features

• Class ZZ tolerance class for general-purpose hole inspection
• Minus designation confirms lower tolerance boundary for go/no-go gauging
• Nominal diameter of 0.417 inches with 0.0002 inch tolerance
• Steel construction for durability in shop and lab environments
• Compact and lightweight at 0.2 pounds for easy single-hand use

Compatibility

Designed as an OEM-style replacement or supplemental gage for use with standard plug gage handles and sets compatible with 0.417 inch diameter pin gages in Class ZZ applications.

Installation Notes

Plug pin gages are handled and used by quality control technicians and precision machinists. Clean the gage and the hole being checked before use to prevent debris from affecting the measurement. Avoid applying lateral force during insertion, as this can cause wear to the gage land and compromise accuracy over time. Store the gage in a protective case away from moisture to prevent corrosion of the steel surface.