Re: Sterling Dump
10,500 rpm should be fine if your feed rate is OK for the .015" end mill. 6500 rpm for the .250" is a little high but again OK if you are using any type of cooling. I noticed that you either have air or coolant lines for the tooling. If you use either, you should be fine.
That is one of my problems. No cooling of any type for my mills. Need to get an air compressor and start running air lines!!
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