A DRIVER (30, 209) FOR DRIVING A SPINDLE (42, 214) OF A DRUG DELIVERY DEVICE IS PROVIDED. SAID DRIVER COMPRISES A FIRST COMPONENT (44; 207) AND A SECOND COMPONENT (46; 212) ROTATIONALLY COUPLED TO SAID FIRST COMPONENT (44; 207). DURING RESETTING OF SAID DRUG DELIVERY DEVICE, SAID FIRST COMPONENT (44; 207) IS ROTATIONALLY DECOUPLED FROM SAID SECOND COMPONENT (46; 212). THE MOST ILLUSTRATIVE DRAWING IS FIGURE 6.