Hex Broach Options?

[Bill_Hancoc]

I understand what a broach is used for but never actully cutting my own keyways could someone explain how one is used? Thank you very much

[Cory]

Originally Posted by Bill_Hancoc

I understand what a broach is used for but never actully cutting my own keyways could someone explain how one is used? Thank you very much

a hex broach has a cylindrical end to it that is the same OD as the ID of the pilot hole in your part. This helps align it with the part. You then use a press to push it through the part. the broach gets progressively larger as you approach the top, until it reaches it's finished size.

With a standard keyway broach, you have a bushing that has the same OD as the ID of the hole you're broaching, with the profile of the key removed from the edge so that you can push the broach through with a press.