6000 Joker Ratcheting combination wrenches, 17 x 224 mmPremium metric ring ratchet spanner by Wera: Everything a wrench can do and so much more. Faster, better, more beautiful. A real Joker! The new generation of ring ratchet spanners. For hexagon screw heads and bolts. With holding function enabled by a metal plate in the open end, which reduces the ri