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Your cart is empty.Technician Grade Knock'er Loose is a super-fast penetrant that attacks corrosion to aid in disassembling tools, automobile engines, plant machinery, and other equipment for routine maintenance. It is harmless to all metals and leaves long-lasting lubrication to protect different equipment and tools against future corrosion. This penetrating lubricant works effectively on various metal fittings, hinges, bushings, washers, lugs, nuts, bolts, metal joints, and couplings.
Jack Williams
Reviewed in the United States on March 5, 2025
Some of the best if not the best penetrating fluid. It breaks everything loose I use it on
Dave
Reviewed in the United States on March 16, 2025
Works very well
Phillip Cole
Reviewed in the United States on January 5, 2025
Smells great works like a charm best stuff ever.
Betty S
Reviewed in the United States on February 14, 2024
I have a 2001 Toyota Echo and both of the door locks were starting to seize up to the point where I could barely open them from the outside using the key. I was seriously worried about getting locked out and did a bunch of research about replacing the locking mechanism in both doors. One post I saw mentioned that using a penetrating oil could help loosen the tumbler so that they key would work correctly. A couple sprays of this into the lock and both locks are working like new! Saved me a ton of time and hassle trying to replace the locks.
John D. Hanig
Reviewed in the United States on December 24, 2024
I don't have the words to express how impressed I am with this stuff. Example: I have a flagpole suitable for a 3x5 flag mounted to the rail on my deck. It's one of those fancy flagpoles with ball bearings down at the base of it so that the pole itself will rotate with the flag as it flaps in the breeze. The result is that the flag should never get tangled up or wrap itself around the pole.Using other lubricants (Ballistol, 3-in 1 Oil, Silicon Spray, white lithium grease), if I didn't lubricate the base a couple of times a week, the flag would start getting tangled. I applied Knock'er Loose ONCE on November 8, 2023 and it's still flying freely. That's 46 days without having to apply a second dose!Needless to say, as a penetrant, it can pop the most reluctant of frozen nuts and bolts loose, and it doesn't have to soak overnight to do it. I typically will spray the frozen offender, wait a couple of minutes, and then pop it loose. My neighbor comes over here with his frozen stuff for me to break it loose for him!I know CRC owns K&W and makes a product with the same name but in a different spray can. This, the K&W Technician Grade version in the shop sized can is the better deal at 18 oz for $9.79, compared to 13 oz of the CRC Industrial Grade version for $11.35. This is great stuff!
ProfessorWizard
Reviewed in the United States on November 11, 2024
Yes it is, The best parts loosener in my 60 years in the industry. Plus it has a bit more volume than the store volume. Give it a try, a goid value also.
Carey
Reviewed in the United States on November 25, 2023
Did what it was supposed to do
O.B. Juan
Reviewed in the United States on November 12, 2023
I use this product to enable removal of rusty fasteners. It's a clear very low viscosity penetrating oil that soaks into rust really well and with almost no odor. I usually pre-soak heavily rusted fasteners if possible but even when I don't it works just as well as the more expensive options. But the best part for me is it comes in an 18 oz. can which is about twice the size of the competitors can which it's pretty rare these days when the trend is a smaller package and/or volume.
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