Ultra-cute Pro is a premium water-soluble oil with maximum stability specifically formulated for heavy-duty applications of ferrous/nonferrous metals, aluminum, Brass Bronze, and copper. Ultra cut Pro outperformed leading competitors' products in bacteria and fungal control in an independent study. This new coolant is for the savvy customer looking for the best sump life and the highest levels of machining performance. Ultra cut Pro is a great choice for customers with existing bacteria or fungus problems.