Having misplaced an Allen Key for one of my non Fender guitars, I decided to try this one.
It did not fit.
Therefore, anyone with the same (dumb) idea should steer clear as this very small size is apparently intended for Fenders.
It will not fit Suhr, Tom Anderson or Fernandes Guitars.
However, I decided not to return it for just two reasons:
1.To save me and Musikhaus Thomann all the paperwork
2. I decide to buy a Fender Strat to use it with!