Right now if you lock a container then happen to lose the key(s) your pretty much forced to call someone in to have them replace the lock with a new one, and even then you may not want to bother with locking containers anymore or you may only want to lock certain containers temporarily, etc.
Hence I suggest Bolt Cutters.
Now they would be used to permenantly remove crafted locks on containers/lockers only, this way you have the option to get rid of locks and would make lock use abit more likely either on a temporary or permenant basis.
Now crafting them should have a lockpicking requirement and the exact materials required for it shouldn't be too expensive probably abit more then a expanded lockpick set should be.
As for actually using them I'd suggest that it's success be dependant on the user's lockpicking skills, so obviously a higher value of lockpicking will greatly increase the chances and dictate what quality of lock you could remove, even then it could be possible that if it's too easy that it may require multiple successful attempts on higher quality locks before they break or somehting like that.
Would certainly be a useful addition especially if someone goes crazy inside a base with a couple locks and hopefully it would breathe some life back in to the lockpicking skill.