Originally Posted by biff
take the crankarm off, put the pedal nut in a vice, put a cheater bar on the crankarm, profit.
Many, if not most, pedal nuts are blocked by the pedal, and can not be grabbed by a vice.
One would need to make something to grab the pedal nut, Just flat stock of the right thickness would do it. It still may not grab as well as the wrench. It depends on how hard the stock is, the wrench is probably much harder.