Loosen frozen metal parts the professional way, with Kroil Original Penetrant in liquid and aerosol (formerly AeroKroil) formulas. Discover why this is the best penetrating oil to loosen bolts in various applications.

• INDUSTRY LEADER IN PENETRATING OILS -Kroil industrial lubricants from Kano laboratories have a strong reputation among professionals as the best penetrating oils for any industry. When you need a penetrant that will get the job done fast and easy the firs
• PENETRATES FASTER AND DEEPER - No space is too tight, because Kroil penetrates even the smallest openings, threads or crevices. So, whether you're lubricating dirt bike motorcycle chains, rusty old door hinges, or stubborn garage door rollers, Kroil isn't
• SIMPLIFIES REPAIRS, MAGNIFIES MUSCLE - When tackling the toughest nuts and bolts, any additional leverage helps. Kroil requires half the amount of torque to loosen comparably seized bolts as other leading brands, and requires 5 times less torque than with
• ATTACKS CORROSION, REMOVES RUST AND CARBON DEPOSITS - Corrosion meets its match, as Kroil removes and prevents rust, cleans carbon deposits and lubricates rusty parts. Kroil also displaces moisture and protects against humidity and salt water, which makes
• UNSEIZE THE DAY -Kroil quickly loosens seized nuts and bolts, frees frozen shafts, pulleys, and more. It's amazing what Kroil can do in even the rustiest of situations. Unseize the day with the bolt busting power of Kroil. Made in the U.S.A.