Dumont Minute Man 55552 Keyseating Broach Style Af

Product Description

The DUMONT MINUTE MAN 55552 is a Style AF keyseating broach designed for cutting precise keyways in bores, hubs, and mechanical components. The cutter measures 1/8 inch in keyway width with a 3/16 inch body width and a 16 inch overall length, making it suited for deep-reach keyseating operations on lathes and keyseating machines. The uncoated finish is standard for general-purpose broaching in ferrous and non-ferrous materials. This tool is handled by machinists and maintenance mechanics performing shaft-to-hub fitment work in manufacturing and industrial service environments.

This broach is used in keyseating operations where a 1/8 inch keyway must be cut to accept a standard square or rectangular key. The 16 inch overall length allows the tool to reach through longer workpiece bores without secondary setups. The 3/8 inch tooth pitch and 7/16 inch maximum height at teeth define the cutting geometry for controlled stock removal per pass. Typical applications include production shops, repair facilities, and field maintenance operations requiring accurate keyway profiles in shaft assemblies and gear bores.

Key Features

• 1/8 inch keyway width for standard keyseating applications
• 3/16 inch body width provides rigidity during the cutting stroke
• 16 inch overall length enables deep-reach bore access
• 3/8 inch tooth pitch for controlled chip load per pass
• 7/16 inch maximum height at teeth defines cutting depth capacity
• Uncoated finish suitable for general-purpose broaching in a range of materials

Compatibility

Designed for use on keyseating machines and lathes equipped to accept Style AF broach tooling. Consult machine manufacturer specifications to confirm tool holder and stroke compatibility before installation.

Installation Notes

This broach is installed and operated by qualified machinists familiar with keyseating machine setup and feed rates. Power down and lock out the machine before loading or removing the broach. Secure the workpiece firmly to prevent movement during the cutting stroke, as lateral deflection can damage the tool or produce an out-of-tolerance keyway. Follow the machine manufacturer guidelines for lubrication and pass depth to maximize tool life.