The drop center socket wrench from Proxxon allow tightening screws up to 4 cm (1/4-socket wrench) and 6.5 cm (1/2-socket wrench) supernatant of the threaded rod and extends the range of the tool so significantly.
With regard to the quality of the items I refer to my positive assessment of Proxxon 23286 toolbox.
A suggestion for the manufacturers I have, however: it should be possible in my opinion, solely to provide the basic building block for a surcharge (material overhead) with drop center keys: Drop Deck Key fit yes at "short" applications.
