0.05 DOC at 12 ipm entry, 18 ipm cutting edges and 7500 rpm spindle speed and this little end mill can't get the job done. Any slower or flatter use is a waste of time. I'm tired of cheap end mills, hard to find better ones in smaller sizes. We prefer Gws or Kennematal kor5 aluminators for size 3/8 and larger. I will keep looking for the best small end mills. Definitely tired.