Sunnen meets contemporary needs for planet friendly industrial consumables with the introduction of SHO-500, a long-lived general-purpose honing fluid based on a renewable vegetable formulation that makes sustainable metalworking affordable and practical. Offering a breakthrough in oxidation stability, SHO-500 is formulated without additives that many find objectionable, such as sulfur, chorine and fluorine. It is a solution for honing applications where additives cannot be used, such as nuclear and some aerospace parts, or where company policies discourage use of fluids with such additives. SHO-500 is acceptable in all parts of the world and to all religions and cultures. It is suitable for use with conventional vitrified honing abrasives and metal-bond superabrasives. SHO-500 joins Sunnen's two other planet friendly oils, MAN-863 and KG3X, which are listed as BioPreferred products by the U.S. Department of Agriculture. The new oil is available in five-gallon pails, 55-gallon drums and 330-gallon totes.