The Winkhaus Cobra 4 hooks lift lever features a central deadbolt and split spindle. To change handing, push in latch and a screw will appear in back of lockcase. Undo the screw to remove the latch. Reverse, reinsert and replace screw. The small rectangular slot adjacent to side of the spindle hole contains a black roll pin. Insert a flat bladed screwdriver and roll the pin to opposite side to reverse function.