I was running some a few weeks ago and was using 500 sfpm. A feed of .005 was working fine but needed to blow air on tools to help keep them cool
as you are not suppose to use coolant as the material will absorb it.
Also put a air filter on the machine to take away the fumes as they are not nice.Hope this helps.
This material is not nice to your machine.Keep the ways wiped off with a oily cloth and change out your coolant when done.Make sure your spindle seals are secure,lost my spindle bearings and swear that I will never machine any phenolic again.