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Thread: Keyway Broaches

  1. #1
    Join Date
    May 2006
    Location
    Canley Heights, NSW
    Age
    67
    Posts
    529

    Default Keyway Broaches

    Can someone explain the difference between A,B & C style Keyway Broaches.

    Cheers Shane.
    Shane

    Got the square peg in the round hole, now can't get it out !!

  2. #2
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,541

    Default

    Refers to the size of the slot that the broach slides in while working, which in turn relates to the size of the bush in the hole being broached - so (as an example with randomly selected numbers) you might have a 5mm B broach that will fit bushes from say 12mm to 19mm diameter, where a 5mm C broach will do 18mm up to 26mm.
    You can of course make up your own bushes for what ever size hole you wish to broach.

    Michael

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