One investment for life, only the holder annoying sometimes

This key sentence is likely to be for a private man the only one he still buys. If the keys are not lost or "legs get", they should last a lifetime. The sizes are graded very extensive and at least I will never safely use a few of the key. But in the set they are always bought even cheaper individually than good key. And you never know what's coming.
The length of the keys is extremely user friendly. Firstly to get to so many hidden screw easier approach, for which otherwise a bit holder with extension needed (eg by a housing or on a drill passing) and but has not problems with the thick bit holder, which is like to get in the way , On the other hand, the lever arm is synonymous longer and you can neatly transfer power. The ball head on the long end, finally makes the quick or forth turning a screw easier, because the key to no longer be maintained accurately grade must and you can embrace and continue to rotate very rapidly even if the angle changes thereby.
The bracket has been already criticized in some reviews and I can only agree with that. Actually, it's a good idea to keep the key in a fairly compact plastic sheath together. Particularly when, as here also thought along and a kind of brake is installed. Are the key cross-shot, you can not slip out of its own accord, but having to be rotated slightly oblique. Eben according to a flat side of the key. Unfortunately, however, block the larger key a number the smaller and so all of the major keys must be turned until the desired is free and can be removed. That sounds bearable, but annoying at some point but if you want to quickly grab a key. All you need to take out in advance and ready to lay, although meant nice, works in reality but not always.
Overall, the quality is beyond any doubt and the holder is despite the somewhat cumbersome sampling procedure very convenient and apparently also very robust.