cam bearing help

Yep I cut grooves in my old cam at about a 45* angle. using motor oil on it, I slowly cut the new bearings until the cam would turn without using a lot of force. It worked perfect.
I found an old thread. He used a "Wix wheel" to cut the cam. I dunno what a Wix wheel is. But I imagine a cut off wheel would do the trick. I might try it. What did you use? And you cut them on a 45* angle instead of just straight across?