Originally Posted by Dave Mayer

At our bike Co-op we go through one of the black-handled Park crankarm pullers every week. The (unsupervised) user will first try to apply full body weight to torque the crankarm off, and when the nose of the tool bottoms-out, will often resort to a 2' long cheater bar to escalate. Last time I checked we had a sorry row of mangled pullers that needed replacement.

Ditto situation for 15mm Park cone wrenches. We go through one per week due to users applying these to torque end nuts on hubs. They are great tools, but education is sorely required - shall we say.