Abstract: A pressing tool includes a pair of tool parts which can be brought together by tool jaws in a bringing-together direction. In response to brought-together tool parts, a receiving region for the pressed part remains in each tool part. Each tool part has ribs having an essentially triangular contour assigned to the receiving region for crimping a pressed part. A guide protrusion protrudes beyond the ribs and comes into contact with the pressed part and with a guide receptacle guides and centers the respective other tool part. The tool jaws pivot between open and closed positions on a circular path in response to the bringing together and the guide protrusion of the one tool part in the open position is outside of the guide receptacle of the other tool part in the bringing-together direction. The guide protrusion moves into the guide receptacle as part of the bringing together.