Hi All,
I live in the AZ High Desert and it is very low humidity (a bit high at 31% at the moment) all year round. I have to replenish the water/ oil mix regularly as the water evaporates out pretty quickly. I was about to order some more soluble cutting oil and thought I would ask here first.
I am wondering if a straight cutting oil like Mobil 404 would last longer, maybe indefinitely. I mostly cut aluminum on mills and lathes so do not want any staining after machining.
Anyone have some low-cost favorite cutting oils?
Thanks
Dave