These are a godsend when your 5th man in to a job and allen bolt heads are fubar.
I use these as first tool more often than not to remove allen bolts then proper allen key to refit.
I've had some jobs where I wouldn't have been able to fix them without these (or it would have ended in a significantly more expensive job!.).
I use these as first tool more often than not to remove allen bolts then proper allen key to refit.
I've had some jobs where I wouldn't have been able to fix them without these (or it would have ended in a significantly more expensive job!.).




This was a track rod locking nut on a Golf. I had run out of oxygen so it was out with the 4" angle grinder! 




