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Thread: Keyway Broach Set

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  1. 05-28-2008, 04:57 PM #1
    phoodieman
    phoodieman is offline Registered
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    Keyway Broach Set

    I have a manual keyway broach set (Minuteman Brand). How do you set it up?

    Phoodieman
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  2. 05-28-2008, 11:04 PM #2
    RICHARD ZASTROW
    RICHARD ZASTROW is offline Registered
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    The Minuteman broach is used with a bushing/plug sized to the bore to be broached. The bushing/plug has a groove/slot cut thru one side length-wise at the depth required to allow the broach to cut the keyway to the proper depth. Generally the broach is pushed thru with an arbor press.

    If it is a larger sized keyway, the bushing/plug slot is cut deeper than finish size. After the first cut on the workpiece, a shim is inserted in the slot of the bushing/plug behind the broach. A second (or more) pass is made with the broach to achieve the final size.

    Hope that helps.

    Dick Z
    DZASTR
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