1. FUZE FOR PROJECTILES, COMPRISING A HOUSING CONSISTING OF A CAP AND A BASE PORTION WITH A PENETRATING AXIAL BORE IN THE BASE PORTION, A FIRING PIN WHICH IS MOUNTED AXIALLY MOVABLE INTO THE BORE SO THAT ITS FRONT END PRIOR TO THE IMPACT OF THE PROJECTILE IS LOCATED AT THE FRONT OPENING OF THE AXIAL BORE OF THE BASE PORTION, AND THAT ITS BACK END REACHES UP INTO THE AREA OF THE CAP OF THE FUZE HOUSING, A CLOCK MECHANISM-SELF-DESTROYING DEVICE IN THE BASE PORTION OF THE FUZE, A CYLINDRICAL ROTOR MOUNTED IN THE BASE PORTION OF TEH FUZE HOUSING AND WHICH IS ROTATABLE AROUND AN AXIS WHICH IS ECCENTRIC AND PARALLEL TO THE FUZE AXIS, MEANS TO TURN THE ROTOR FROM A REST POSITION INTO A FIRING POSITION, A PRIMER CAPSULE PROVIDED IN THE FORWARD FRONT SURFACE OF THE ROTOR SO THAT IN A REST POSITION IT IS LOCATED OUTSIDE AND IN A FIRING POSITION IT IS LOCATED IN THE FIRING AXIS AND IN THE PATH OF THE INNER END OF THE FIRING PIN, MEANS PARTLY ON THE CLOCK MECHANISM AND PARTLY ON THE ROTOR TO HOLD THE ROTOR IN THE REST POSITION DURING A PREDETERMINED RETURN TIME OF THE CLOCKWORK, SAID ROTOR HAVING A BLIND HOLE IN THE FORWARD FRONT SURFACE THEREOF WHICH IN THE REST POSITION OF THE ROTOR IS LOCATED BELOW A POINT OF THE FIRING PIN WHEREBY THE DEPTH OF THE BLIND HOLE AND ITS DIAMETER ARE MAINTAINED AT A SIZE LARGE ENOUGH SO THAT THE BLIND HOLE CAN RECEIVE AND HOLD A PORTION OF THE FIRING PIN, SAID PIN HAVING A WEAKENED SECTION THEREIN WHICH IS THE WEAKEST PART OF THE ENTIRE FIRING PIN WITH THE WEAKEST PART PROVIDED AT SUCH A DISTANCE FROM THE POINT OF THE FIRING PIN THAT IN THE CASE OF AN IMPACT OF THE PROJECTILE ON THE POINT OF THE FUZE, WHILE THE ROTOR IS STILL IN REST POSITION AND IN THE CASE OF A SUBSEQUENT TEARING OFF OF THE CAP, SAID FIRING PIN IS DRIVEN INTO THE BLIND HOLE WITH ITS FRONT END JAMMING INTO THE BLIND HOLE AND THUS SAID FIRING PIN WILL BREAK AT THE WEAKEST PART, THEREBY THE CAP TOGETHER WITH ITS PART OF THE FIRING PIN REMAIN AS A TORN OFF SECTION, WHILE THE PART OF THE FIRING PIN THAT IS WEDGED IN THE ROTOR IS OF A LENGTH SO THAT A PORTION THEREOF WILL STILL PROJECT FROM THE FRONT