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The DUMONT MINUTE MAN 55563 is a Style AF keyseating broach designed for cutting precision keyways in bores and housings. With a 9/16 inch body width and a 20 inch overall length, this broach is built for use in keyseating machines where consistent slot geometry is required. The tooth pitch measures 17/32 inch, and the maximum height at the teeth reaches 1 inch. The uncoated finish suits general-purpose toolroom and production applications. Machinists, toolmakers, and maintenance technicians working on power transmission components rely on this type of broach for accurate, repeatable keyway cutting in ferrous and non-ferrous materials.
This broach is suited for shops and maintenance environments requiring keyway cutting in shafts, hubs, gears, and couplings. Style AF geometry is a standard configuration used in vertical keyseating machines. The 9/16 inch width matches common keyway specifications found in ANSI standard power transmission assemblies. It is appropriate for both production runs and one-off repair work in industrial and maintenance settings.
Designed as a standard Style AF keyseating broach for use in vertical keyseating machines that accept this broach style and body width.
Installation and use of keyseating broaches should be performed by qualified machinists familiar with keyseating machine operation. Ensure the workpiece is securely fixtured and the machine is properly set up before beginning the broaching stroke. Inspect the broach for chips, cracks, or dull teeth before each use. Follow the machine manufacturer's guidelines for broach retention, lubrication, and feed rate.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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