And he should no better lol

[Highpower]

(10-16-2014, 12:28 AM)TomG Wrote: It doesn't matter which side of the arbor the end mill is on, it's still gonna unscrew the part. What he needed was a left hand end mill,
Tom

That is what I was thinking as well. Even if he was cutting a step/ledge around the outer portion of the top of the ring by driving the rotary table, it's still going to want to unscrew the thread using a RH end mill no matter which side of the arbor he is on.

Good point about cutting the top of the ring from the inside out with a RH mill Tom. Now I'll just have to try and remember that if the situation comes up on me in the future.