We discuss cutting speeds an awful lot.? I more or less do nor believe.? As a speed test, I put a 1/4" milling cutter in a Cowells mill.? I had a brass block with a rough edge.? I made one cut at the machine's highest speed.? Then I turned it down to a much lower speed than I would normally use.? So which cut left or right is fast and slow?? For my purposes in model trains it more or less doesn't matter.
