Kroil Original Penetrant - Rust Penetrating Lubricant - Corrosion Inhibitor Oil for Chains, Hinges & Stuck Metal Parts - Home & Industrial Use - Drip Can - 8 oz - 4 Pack (AZKL081C4)

Kroil Original Penetrant is incredibly effective when dealing with stubborn, rusted, or seized hardware. It penetrates into tight spaces and helps loosen nuts, bolts, and other metal parts that otherwise refuse to budge. A little goes a long way, and it’s become one of those products I always want within reach in the garage or workshop. Excellent penetrating ability, dependable performance, and professional-quality results. Highly recommended!

Have heard about this magical elixir for years. Old school mechanics from New England to the deserts of Nevada have pointed to the orange can and said their tales of how it loosened the impossible where others had failed. - I was always too cheap to try it. So, here I am decades later and watching one of my favorite YouTube channels and there it is, the orange can. “it’s a bit pricey, but worth it “ as he gingerly applied it on a rust solid fitting. Moments later, it worked. Not a sponsored product, just a guy showing how simple and effective it is. Facing a glass mounted frozen wiper arm fitting on a place that can’t be cut, warmed, drilled or muscled, I ordered. Finally. The oil smells wonderful, btw. A few drops over three days, and the corroded grip was dissolved and the arm freed. No broken glass. No cussing. No drama. Okay, the oil works great, I was ridiculous not trying it earlier. I’m actually mad at myself because it would have likely saved a ton of time and broken parts over the years. I’ve used it since and am exceptionally pleased with it. Thanks to all who recommended it. Price wise? Same price as two cans of what doesn’t work. A+++

This stuff is awesome. It removes any trace of rust, and even used it on some plumbing fixtures that nobody could loosen because of hard water deposits, and did the trick quickly and effortlessly. All around good stuff to have handy for any stuck components, be it automotive, firearms and even plumbing.

Yes, it is crazy expensive. 3-5x the price of the competition. NOT well known. No advertising. Limited availability. But wow. This stuff really works. The hype is real. The drip cap is quirky; don't break it. Used just a few drops on some very heavily rusted parts that had been sitting for 20 years. A few minutes later, they came apart easily. Count me impressed. This 8-ounce can is probably a lifetime supply for most homeowners. Cannot believe this has been around for 80+ years. If you need something that may or may not work and have a thin wallet, buy one of the many choices at the big box store. If you have expensive parts that absolutely need to come apart, pay the price. You will not be disappointed

Good stuff. Give it time to work. It is not instant but a few hours (overnight best) and it will get the job done. Used it for restoring old Springfield percussion cap smooth bore. Worked well freeing up rusted trigger mechanism and removing rust from barrel.

A night-shift nurse appreciates anything that lets home feel quieter after work. I bought this Kroil for the rusty hinge on our side gate, which squealed every time I came in after a late shift. I wiped away loose dirt, put a few drops right at the hinge, and worked it back and forth. The next time I got home, the gate moved without that awful squeak. The drip can made it easy to aim the oil where I needed it, and I didn’t end up coating the whole latch. I’m glad I had it on hand, especially when I just wanted to get inside, kick off my shoes, and finally relax. A useful little can to keep near the household tools.

Kroil always works as it should. Gold standard....

Works like a charm. I couldn't believe it when the rusty bolts broke loose!!

Great stuff, frees up rusted and seized parts

This stuff is a life saver when trying to in-stick rusted screws and other metal parts. Used this on several old firearms and haven't messed up a single screw since I've had this. A couple drops and wait a few minutes and you are probably good. Creeps into tight crevices and through rust. This can be expensive to get in Canada but if you have a stuck screw that seems impossible, stop and give this stuff a try. It will save you from having to order new screws more than likely. Smells interesting like cherries and gasoline but now I actually kind of like the smell.

Price is little high comparing with same in market , Smell is very strong

It worked great on the frozen element on the hot water heater. I put some on a day or two before the impact bit arrived. It wouldn't budge before, tightened it to crack it loose, then it spun off like magic. Really penetrates through anything. Be careful getting it on your hands or face, it has a really strong smell and may cause skin irritation...i was careless, i could smell it for two days!

This is simply the best penetrating oil I have come across. Simply magic stuff