
Removed the bottom bracket and crank from a 25 year old bike, both have never been removed. The nut worked. The black paint had peeled off most of the teeth but they remained fully functional with no visible damage to the metal teeth themselves. It has endured a lot of force. The wrench that comes with the kit is not very strong as others have said. I had to use a broken bar for the bottom bracket, but I should note that I was able to remove the cranks with the wrench provided (which bends easily under load). You will definitely want something stronger if you have a stubborn bottom bracket. Despite the crappy wrench, this is a reasonable price for a tool that you'll likely only use on a few occasions for years to come. I'm glad I didn't spend money on a professional tool that I would have used on that one occasion.

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