I agree wholeheartedly with Irving.

My Dore Westbury is reasonably heavy and rigid for a small benchtop milling machine, certainly it's a lot stiffer than most of the Chinese machines sold by Axminster, Machine Mart etc. It really struggles when milling stainless, even with tungsten carbide cutters and copious coolant it will only take very small cuts. The main problem with taking small cuts is that stainless then gets very prone to work hardening and becomes near-impossible to cut.

All told I really think you need something along the lines of a big knee type milling machine like a Bridgeport, as Irving suggests, to do any serious work with stainless.

Jeremy