United Uninet SFO 170 is formulated primarily as honing oil for use on steel and high nickel alloy metals. It can also be used as a super finishing oil in the machining/ honing of aluminium and magnesium alloys. This neat oil is designed for light to moderate-duty machining operations including deep hole drilling and boring. The low viscosity at approximately 10cst/40C is achieved by using high-quality transparent hydrocracked base oils and ester-based lubricity additives without mixing with low flash point solvent.