dodge man
Super Star Member
Cutting oil. For years, I just burned up metal saw blades, drill bits and such when I drilled into metal. At times I would spray a little WD40, but that stuff is pretty flammable. I then tried a can of cutting oil. It sprays out like WD40, but is a little thicker. I don't know what is in the stuff but it seems to make your drill bit sharper and cut much better. This stuff will save your sawzall blades and drill bits and pay for itself.