A releasable coupling for the transmission of a rotation movement. This coupling includes a first and a second coupling half which include engagement structures which correspond to one another and which can positively engage with one another. At least one permanent magnet is arranged on at least one coupling half in a manner such that with the approach of the coupling halves to one another, these with respect to a rotation axis are rotated into a defined angular position relative to one another, by way of the magnetic force which is produced by the permanent magnet.