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We once couldn’t get a pin out of the horizontal stabilizer of a Falcon 20 business jet. We tried other products and couldn’t get the pin out. We then used Kroil, and within 5 minutes that pin was out. I was sold on Kroil then and there.

Restoring my 1974 Lotus Europa Twin Cam Special, Kroil let me remove the 50 year old bolts and nuts without breaking a single one.

“Prior to using Kroil, we had to do a lot more manual labor to free frozen parts. The breakage rate was 85%, which then required drilling out the broken studs. Kroil has reduce stud breakage by 80%.”

I worked for the federal government and I was trying to get a penetrating oil from the supply system. This was back when we used cards and microfiche to try to find what you need. Out of several attempts to find a good stock number for something that worked, I was buying Liquid Wrench out of my own pocket just trying to get the job done on stainless steel bolts in aluminum structures on the ocean. Then the FSN gods smiled upon me and I got a can of Kroil, only they called it AeroKroil back then. Oh what a change! I was getting so tired of drilling out broken bolts and re-tapping the threads. I ordered a case and passed it out like candy. I no longer ended up looking like the tin woodsman from all the Anti-seize compound. It took me awhile to find a local supplier so I could have some at home too. Now I am retired but still hooked up with Kroil.

I read about the best penetrating oil in the world and had to try it  about fifteen years ago. At that time it was called Aero-Kroil.