The machine shop that will be line boring the 3 center caps should be able to cut the thrust faces as well. It's part of the process. My Sunnen line bore attachment for the line hone will cut the thrust faces. It's a little crude, but it will cut them. Billet caps are really tough and can produce a little chatter. Check with your machine shop. Not sure how to cut the thrust faces in a Bridgeport without a rotary table and a fly cutter. That would be pretty tough. Mounting the caps is pretty easy in a Bridgeport. I just use a transfer punch to line up the drill guide. Drill and tap. Pretty simple.
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