Hello guys.

I'm working on a part which has a male keyway inside a small bore. The factory piece is sintered iron and they just press it together- easy. Machining that though- not so easy.



Here's what I mean-

Anyways, I was thinking about using a rotary broach to do this in process in the cnc mill / lathe. It's either that, or use a standard broach I suppose.

Anybody ever seen anything available off the shelf to make something like that? If not, any clue on where I should start the search?

Thanks,

Pete