Quote Originally Posted by Northlander
An action wrench is designed for the rigid holding of the action when tightening or loosening the barrel nut. This is exactly what these are designed for.

Jim Briggs
NSS
+1

I just put a rifle together and I really didn't want to spend the money for an action wrench, but it definitely made the job easy and was well worth the money spent to ensure that the job was done right with no risk of damage to my action.