i wouldnt have thought auto screw cutters would be too bothered about free cutting properties graham,not with the amount of coolant blasted on them..now alloy yes as thats a pig when you dont use fc stuff.
tha main thing with stainless is that you dont screw stainless into stainless as it can cold weld together as the oxide barrier is scraped away and fused with the other part,not sure on stainless into alloy tho,altho they both have oxide barriers.
only time will tell if they will be ok
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