Kroil Original Penetrating Oil (Aerosol Spray-10oz Can-Case of 4), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS102C4)
Kroil Original Penetrating Oil (Aerosol Spray-10oz Can-Case of 4), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS102C4)
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Kroil

Kroil Original Penetrating Oil (Aerosol Spray-10oz Can-Case of 4), Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts, Rust, Corrosion Inhibitor (AZKS102C4)

Key item features

  • Trusted Penetrant: Kroil Original Penetrating Oil is a trusted solution among professionals for various industrial applications.
  • Deep Penetration: This oil effectively penetrates small openings, threads, and crevices, making it suitable for seized bolts, chains, and hinges.
  • Effortless Loosening: It simplifies repairs by loosening tough rusted parts quickly, reducing the torque needed for seized nuts and bolts.
  • Corrosion Combatant: Kroil attacks and prevents rust, cleans carbon deposits, and displaces moisture, humidity, and saltwater.
  • American Made: Manufactured in the USA since 1939, the product is produced by American workers in Nashville, Tennessee.
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4.678422596079642 stars out of 5, based on 12996 seller reviews(4.7)
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About this item

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Customer ratings & reviews

5 out of 5 stars
stars1,079 ratings1,079 reviews
How item rating is calculated
  1. 5 stars98% (1,059)
  2. 4 stars1% (12)
  3. 3 stars0% (1)
  4. 2 stars0% (0)
  5. 1 star1% (7)

Reviews summary

Pros

  • : Has a non-objectionable scent.
  • : Provides lubrication and loosening of rusted parts.
  • : Used in various applications and projects around the house.
  • : Used in various shop settings, including service vans and home workshops.
  • : Quickly loosens stuck metal surfaces.
  • : Breaks down rust quickly and easily.
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Showing 1-3 of 1,079 reviews

Mar 3, 2026
WildCat1
5 out of 5 stars review

Easy to use

Fantastic stuff. Years ago I was working on replacing a brake caliper on my F250. The bolts were seized tight. A friend loaned me his can of Kroil and said to spray the bolts and go have a cup of coffee. When I came out to take them off I was stunned that I was able to now do it with just a socket and ratchet. Over the years I have used this on so many things but here two weeks ago I had to replace the washer/gasket cartridge on my bathroom sink. It's supposed to just slide out. Nope! The hard water had cemented it into place. I sprayed it with the Kroil and waited an hour and that thing now just slid out. Thank you for such a great product.

Review from kroil
Helpful?0V5UUGGPECAI1971828005
Aug 23, 2025
Feeb
5 out of 5 stars review

Glad I found this Product

I worked at an airport, as head Maintenace mech. The ONLY Penetrant that i used was Aero Kroil and still use at home all of the time. I have tried other penetrants in the past, but Never found a better product that Kroil. Sometimes I have a hard time finding Kroil in businesses, but when I do I try to stock up on it. Thank You for such a Great product, it makes my life a lot easier.

Review from kroil
Helpful?0V5UUGGPECAI1971828005
Sep 8, 2025
envoy98
5 out of 5 stars review

Second to none

I have been using Kroil for 15+years. I have been in the fence business for 53 years and we have a repair shop for all our fencing tools such as bobcat skid steers, M100 diggers, fork lift trucks and little beaver earth drills. We use Kroil as needed to help repair all our equipment. It is second to none.

Review from kroil
Helpful?0V5UUGGPECAI1971828005