Special hexagon socket wrench set, 9 pieces, with the key sizes SW 1.5 - SW 2 - SW 2.5 - SW 3 - SW 4 - SW 5 - SW 6 - SW 8 - SW 10 mm, extra long blade with ball head, made of hardened S2 special steel, polished, hard chrome-plated surface, in a practical plastic holder with belt clip. The special feature: With the help of the special key shape, even damaged (rounded) hexagon socket screws can be loosened (not on the ball head side).