Originally Posted by EjustE

Pliers are the second worse tool you can use to work on a bike, after a vise grip... Or maybe flat edge screwdrivers trying to get to a 7mm Allen bolt because you don't happen to have that size around... I have just seen too many bolts and theads stripped and headsets irreversibly marked by the use of the wrong tools, to try to play MacGyuver around bikes. Pliers are meant to grip, wrenches are meant to twist (and you use the flat part of a wrench to measure size and the curvy one to twist)