by Robotnik » 23 Oct 2016 2:12
Depends on a lot of factors. Which lock (model, mfg, padlock, mortise)? Have you confirmed its operation? How far does the plug rotate? Does it turn freely, or feel like it's dragging?
Sometimes the plug will begin to turn before all depths are fully cut, then bind against the shell. This may be the case here; are you seeing any deep crater marks on the key?