Kroil's 1 gallon penetrating oil penetrates quickly into the smallest gaps between metal parts to loosen corrosion, dissolve carbon deposits and break loose the seized parts, making even the toughest maintenance jobs easier, faster, safer and simpler to execute.Used and trusted since 1939, Kano has been a leading producer of penetrating oils and lubricants in the industrial maintenance, repair, and operations ("MRO"), and professional specialty trades. When stuck on a job, use Kroil.FAST-ACTING: Deeply penetrates and quickly loosens frozen and stuck parts. Works quickly and efficiently based on unique formulation of this high performing penetrant. Helps save time, money, and resourcesUNRIVALED STRENGTH: Fights corrosion and removes rustAPPLICATIONS: Use on nuts, bolts, studs, screws, pulleys, shafts, chains or on any corroded threads or seized metal fasteners. Can be used as a soak or to refill spray applicators designed for commercial useINDUSTRIAL PENETRANT: Loosens seized metal parts, cleans, penetrates and displaces moisture on metal partsPROTECT METAL: Penetrating oil that does not attack or damage metal and is safe on all metalsPRECISION APPLICATION: Use in small quantities for precise applications with liquid formula