Had the present in the set screwdriver largest in use today and it is broken when used with hand corner !! No aid of pliers or wrenches, have not even spent the full force and I am certainly not exceptionally strong: / On the other screwdriver branded "Drehmax W.Germany" worked at the same place and is even when using an open-end wrench and full force neither warped even chipped. Unacceptable !!!!
