I show you how to easily remove aluminum bonded into the spindle threads of a bicycle pedal. I had a bike pedal that was seized in an aluminum crank arm. I managed to get the pedal out, but some of the aluminum crank arm threads were bonded to the steel spindle threads. Probably galvanic reaction between the steel and aluminum causing the aluminum to become practically welded to the steel. I wanted to reuse the pedal, so I needed to clear the spindle threads
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