I have to put new rear wheel bearings in the BMW. Have a SIR Tools set to do 911s, quick and easy job, but needed a proper sized disc for the slightly smaller BMW bearing. Got a carbide Milwaukee hole saw to cut one out of some 3/8 mild steel plate. Low speed on the drill press with cutting oil, it got down a little over 1/8 and it's done.
Does that seem right? Milwaukee CS is closed for the weekend. Might have to cut the rest of it out roughly with a jig saw or grinder disc and put it on the lathe.