Recently I wanted to solve with my collected together cheap screwdrivers a Phillips screw and have this case almost ruiniert.Ich was thinking whether I should buy a set screw extractor, then decided but prefer to invest in real tool. And I was not disappointed. The integrated impact cap I could with some powerful hammer blows to establish a good connection between screwdriver and screw and resolve with even pressure from above with the aid of an Allen key the screw finally. This first test have the screwdriver were very good and I believe now to be ready for all future tasks screws. From me `s full marks for continuous hexagonal blade that integrated impact cap and hex key means for the transmission of higher torques.