After the bits have been rightly praised, I bought it and can agree with the reviews only partially. In a practical small box the bits are nicely accommodated; belonging to the various types has been implemented by a colored "coding". Overall, the bits make a good impression; compared with bits for professional users, however, are still worlds apart. However, for the hobby wrench they are an inexpensive Alternaitve to the usual DIY store junk. The holder is visually appealing and the system with the support of bits awesome in itself. However, one flaw is the thing: Keeping the bits by means of an integrated spiral spring. However, remains with the screws hang anywhere with the red collar of the holder, "screwed" the spiral spring from the groove inside and the mechanism is no longer functional. The bit holder is indeed still usable; However, the holder of scrap. In summary, I recommend the system with certain restrictions; However, for this price you can not real professional quality are expected. Costs but already individual bits of brand manufacturers between two and three euros per piece.