Kroil Original Penetrating Oil (Aerosol Spray-13oz Can-Case of 6), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS132C6)
Kroil Original Penetrating Oil (Aerosol Spray-13oz Can-Case of 6), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS132C6)
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Kroil Original Penetrating Oil (Aerosol Spray-13oz Can-Case of 6), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS132C6)

5 stars out of 1084 reviews
(5.0)|
1,084 ratings

Key item features

  • Trusted Penetration: Kroil Original Penetrating Oil is a professional-grade solution, widely recognized for its effectiveness in various industries.
  • Deep Penetration: This oil quickly and deeply penetrates small openings, threads, and crevices, making it ideal for seized bolts, chains, and hinges.
  • Effortless Loosening: It simplifies repairs by loosening tough rusted parts, reducing the torque needed to free seized nuts and bolts.
  • Corrosion Combatant: Kroil actively removes and prevents rust, cleans carbon deposits, and displaces moisture, making it suitable for wet environments.
  • American Made: Produced in the USA by Kano Laboratories, a company established in 1939, ensuring quality and supporting American workers.
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5 out of 5 stars
stars1,084 ratings1,074 reviews
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Reviews summary

Pros
  • : Has a non-objectionable scent.
  • : Works well for loosening rusted parts.
  • : Quickly loosens rusted and seized metal fasteners.
  • : Enables quick equipment and machinery repair.
  • : Trusted by professionals in various industries.
  • : Penetrates and breaks down stuck parts.
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Showing 1-3 of 1,074 reviews

Jun 22, 2025
Talmadge
Sold byElectronic Inventory Online, Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Great product. Needed it to break loose seized brake lines. This was the only thing that worked.

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Nov 9, 2025
Jetmech787
5 out of 5 stars review

Aircraft mechanic loves Kroil

Kroil Review I use Kroil at work for a major airline, and it's hands-down the best penetrating oil I've ever used. Whenever we run into seized bolts, nuts, plugs, or any other stubborn fittings, the first thing our aircraft mechanics do is soak it down with Kroil. It works 100% of the time — flawlessly. No matter how stuck or corroded a fastener seems, Kroil finds its way in and breaks it loose without damaging threads or parts. It's become a go-to tool in our maintenance routine, and I wouldn't want to be without it. Simply put: if it's stuck, Kroil will free it.

Review from kroil
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Nov 3, 2025
Howman57
5 out of 5 stars review

The only one for any job

when i first found out about kroil i worked at a caterpillar in the 90'S ,dealership in virginia, the exhaust studs on a diesel motor were rusted to the point of breaking off along with a large array of different bolts and nuts, in the 2000's i worked for an envelope company for 25 years and the only spray for such a situation was kroil. been in my tool box sense 1984 and still impressed with it today. there is no other !!

Review from kroil
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