Have always gewerkelt bits just as Hoppy craftsman with No Name and left some nerves there. (Because, twisted and adgenuttelte bits.) Now, with the bits + universal holder of the title, I am now very happy and convinced me. For now 100 applications to the bit T15 I could not wear notice neither the bit and Universalhalter.Klar, this should speed / torque of the screwdriver be-matched material after must be observed! Q :-) Here again the product for those who read on the product page and only half rate in the review with only 4 stars because of the 5 and 3 times the number of many bit sizes. Plastic box with bits 25 mm long, 6.3 mm 6-kant drive (1/4 inch)