I'm wondering if you maintain chipload per tooth can you raise the spindle speed and ipm to high speed mill in 4140 soft material? For instance, recommended sfm for the cutters I'm using is about 280(1/2" carbide 4 flute tialn coated) So 1900 rpm and 17 ipm gives me a .0025 chipload. So would it be acceptable to go 6000 rpm and 50 ipm to maintain same chipload but not as deep of a cut, and the cutter survive the action?