08-20-2013, 07:41 AM
Not sure why the intense dislike for WD-40. It is THE best cutting fluid for aluminum and does an excellent job of cleaning up machinery, but as Steve points out, it isn't worth a SH$T as a lubricant. I literally go through the stuff by the gallon for machining and especially tapping aluminum. It also makes a good hand cleaner in a pinch.
Tom
Tom