I won't use the hearing protection unless it's the planer, shaper or my chainsaws.
I need to hear the machine and the wood. Has saved my arse a few times hearing something not right BEFORE it explodes on me.
For those that question, think of it as being able to go around a pipe or threaded rod. Back in the old days it would slowly straighten out the threads, not cut them but bend soft steel back into undamaged shape after cutting the rod or pipe.