Vegetable-based cutting oil works on variety of metals
Heck Industries offers Crazy Larry's Secret Lube cutting oil. Suitable for tapping, drilling, milling, reaming, turning, and broaching, the lubricant can be sprayed or brushed on.
The vegetable-based cutting oil is suitable for use on steel, aluminum, stainless steel, copper, and brass. It is available in 4- and 8-oz. pump spray bottles or gallon jugs.