The Kroil Original Penetrating Oil is a powerful industry-proven solution trusted by professionals and experienced DIYers since 1939. This 10 oz aerosol formula quickly penetrates the smallest openings threads and crevices to free corroded components.Kroil Original Penetrant Aerosol - 10 OzQuickly loosens rusted nuts bolts frozen shafts and pulleysPenetrates tight spaces and smallest openingsRemoves and prevents rust while cleaning and lubricatingDisplaces moisture for long-lasting protectionNSF Nonfood Compounds Program Listed (Category H2 Registration #165745)50-State VOC CompliantMade in the U.S.A.Perfect for automotive repair industrial maintenance and household projects where corrosion meets its match. This professional-grade penetrating oil delivers reliable performance in the toughest applications.