When we advance to the next larger cutter, we have to look around to find a carbide cutter to put in it. We can run carbide twice a fast and take a heavier cut each time, speeding each boring pass up considerably. Unfortunately, this cutter which looked like it had enough clearance, did not perform well in this setup at all, producing lots of chatter and a lousy finish. We have to switch back to a HSS bit.
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