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davidual-
Frame was fine, it wasn't even rusty inside the BB shell. It was the exposed cup fused to the BB shell face. I'm amazed how stress free and easily it came out with the hammer action
Had to use it on the cassette lockring too for the same reason. Torque wrench maxed out at 100Nm wouldn't undo it, but impact wrench had it off in under a second
TooTallTim
Not exactly porn, but yesterday I'd had enough of trying to remove completely fucked square taper BBs rusted into frames, and corroded cassette lockrings, so bought myself a nice deep spline BB tool with 1/2" drive, and a 400Nm impact wrench to take them out.
Took literally 2 seconds. Game changer.