12-points socket heads sets

Socket heads (12 faces)

— socket heads with a working part in the form of two hexagons superimposed on each other so that an "asterisk" with sharp corners is obtained. They are remarkable in that they can also be used with a hexagonal fastener profile — however, without high efforts, since the contact area is small and the risk of failure increases. But with "native" fasteners, such nozzles provide reliability even at high loads. Another advantage of dodecahedrons is that when working without a "ratchet" they can be rearranged every 30 °, which is indispensable when working in hard-to-reach places.