My brother had such a set for 2 years in the repair of their cars, both he and I, as they say, "in the tail and in the mane." One of the heads was damaged and lost. Well, they tore the square adapter 1/2-3/8, which is used for the crank, put on a pipe 2 m and gave it a couple . of course you can’t do this, it’s not a set jamb, but there was no way out, you had to try to unscrew it. The rest of the set did not cause any problems. Ratchets never, the fasteners were not torn off and not pulled to the "stop", so apparently they lived for two years. Then my brother's car was opened and the set was stolen. Now I bought the same 14105 for myself. There was a choice to take 14106, in which the combined keys were replaced with elongated heads. For more than 20 years I have been using different keys and a Hong Kong set of heads (NIZ) and so far I personally have not needed elongated heads. But I need combined wrenches and often still use open-end wrenches combined with a ratchet. A 1/4" screwdriver-type screwdriver has a not very comfortable faceted plastic handle, it really does not lie very comfortably in the hand, but in the handle itself there is a hole for a 1/4" square in the end where you can insert both a 1/4 knob and a ratchet 1/4" and press on the screwdriver and twist with more force.