Scrap: The T5-bit managed only 2 screws.

The function test is very poorly addressed: In my Motorola Defy mobile phone T5 bit has already failed in the third screw: He freaked out when the screw was half out. In another screw he freaked out immediately. Then I bought at the hardware store a (!) T5 screwdriver for about the same price as this set. With the construction market T5 Dreher the screws rotate worked fine. Under a 10x magnifying the top of the cell phone tool set-T5 bits looks rounded and worn. Unused tools look better, but not as good as the screwdriver from a hardware store.

Conclusion: scrap

I put a return request and will report here.