What type of toolholder; generally setscrew type are more rigid than collet. How much tool is sticking out; keep it back to have the minimum length possible.
Chip load per toothis the distance the feed advances during the rotation of one tooth. So if you want a chipload of .005" per tooth on a two flute cutter running at 3000 rpm you multiply .0005" per tooth b y two teeth which equals 0.01" per revolution so at 3000 rpm the feed has to be 30 ipm.
Generally to reduce squealing, actually called chatter, you want to increase the chipload; slower rpm or faster feed. But first make sure your tool is held securely and not sticking out too far.
Incidentally 0.02" depth of cut is a bit skimpy; ten times this should be possible provided you do not run out of hp.
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