<p>The screwdriver (1) has a grasp (2) and a replaceable functional part (5). The functional part has a supporting surface (14) which pushes away toward the grasp at an area (12). In the grasp a movement element (39) is provided being relocatable into a longitudinal direction (12-12) and a check element (22) secures the functional part in an operating position in relation to a movement from the grasp. The movement of the movement element into the longitudinal direction of the grasp is coupled with a movement of the check element in radial direction of the grasp.</p>
