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Thread: Keyway Broaches
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17th Apr 2016, 08:06 AM #1
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 !!
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17th Apr 2016, 08:41 AM #2Philomath in training
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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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