304SS will cut nice if you can eliminate the excessive heat buildup in the cutting zone. Because this type of stainless is a poor conductor of heat, the chips get excessively hot, as does the tool edge in contact with it. The high heat facilitates welding of the chip to the tool, called built up edge. When this breaks away, it erodes the tool, and soon the inefficient geometry generates even more heat because it is cutting poorly, and presto, your tool is ruined.
In a special case where you must avoid water flood coolants, you might experiment with a jet of highly compressed CO2 or NO2, directed onto the workpiece in front of the cut.
I noticed an article about this in Modern Machine Shop I believe, where they were attempting this in lathe turning operations.
Precautions against freeze burns on personnel, and possible suffocation hazards need to be guarded against when releasing large volumes of these gases in a confined area.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)