I do not eat at all. Really WERA? (What is the bar code attached to the bag in Hong Kong Prix?). It does not compare to the wonderfulness of Wera's "double head impactor driver bit 344215 (order code 16403284 bar code is a German prefix)" purchased at the same time. There is no room to expect improvement.
It is convenient for installing in a place that is a little recessed because it catches up with screws. Of course, it is hard to come out, so screw damage will also decrease (this is the main purpose). It is hard to do such as installing from a little oblique, so much to catch up with.