Originally Posted by
alcjphil
Because whether the pedals are 1/2" or 9/16" you need a 15mm wrench to remove or install them
1/2" = .5 and 15mm = .59 , so if you want to use a wrench nearly 1/10" larger than the 1/2" pedal, I guess you're ok. Personally, I want accuracy, when it comes to mechanics, "close enough" is not good enough.