Broaching is a specific type of milling involving a toothed cutting tool for precision machining of odd shapes like holes, splines, and keyways. Broaching can be used to enlarge, shape, or smooth a bored or drilled hole, and to remove material between two adjacent drilled holes. For example, a round hole can be broached to a square or other shape.


The drilling process produces cylindrical holes of various sizes into parts.

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