For what its worth my handy dandy Osborn Mushet slide calculator gives 4750 rpm with 345 mm / min feed for 4 flute end mils and 180 mm / min feed for slot drills brass and aluminium.

On the Bridgeport I usually halve the speeds and run at one third feed rates which seems to work OK without burying me in chips. I run a Bjur spray mist set-up unless doing very light cuts when the mess hardly seems worth it. Full flood on a mill is for fully enclosed systems in my view.

Don't forget that you have to make milling cutters cut and that, within reason, lifetime is proportionate to number of passes so you will get twice the number of jobs taking 3 mm bites than you will taking 1.5 mm ones. Quickest way to clog a cutter is itsy-bitsy-teensy weeny cuts and, with a four flute cutter, trying to go too wide. Not only do tiny chips melt not the cutter and clog up easily they also get recut spoiling the finish. The quarter diameter cut limit on end mills is there for a reason. Any wider and the chips can't properly throw clear as they are cut.

A simple slide type card, or plastic, speed and feed calculator like mine would be a nice magazine freebee. Much easier for the less experienced to look up and tweak values to suit their machine than to calculate or extrapolate from a graph. Hint. Hint.

Clive