You will almost always be better off with Oil in a swiss. Water based coolants rust machine components.
I always used Hangstrafers (most likely misspelled but most know what it is). Smoke was always an issue until the shop hooked up a Smog Hog. We changed the filter every week and it did a really good job until we opened the machine door. I have to say that it was noisy so that was the trade off.
Toby D.
"Imagination and Memory are but one thing, but for divers considerations have divers names"
Schwarzwald
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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