"Rick Hughes" wrote in message
news

I'm tapping Stainless, and finding that taps are sticking (galling I think
is tech term for this) ... 3-in-one helps, but still sticks.

Stainless is notorious for work hardening as it's being machined so it
requires very sharp tools and quite aggressive feed rates on the mill or
lathe so the tool gets well under the surface. Same problem with tapping
really especially if the taps are not brand new and ultra sharp.
--
Dave Baker