I don't clean them, they will be dirty again real soon.So the cordless Makita impact (thanks @Trav for the recommendation) and drill get a little greasy. Don't think brake cleaner is a good idea. Also yellow handle Snap On pics and such...
Much of their use is not greasy; I like to pick up clean tools.
Simple Green?
I appreciate your guidance!
That's the one use for WD-40. I wipe my tools down, i don't bother to wipe it off, it will evaporate soon enough.WD 40 has been my choice for years, spray a little on a rag, wipe clean then wipe again with a clean dry cloth