A pipette for actuating a syringe, comprising: - a strip-shaped housing, - a first receptacle with a first opening at the bottom end of the housing for inserting a first fastening section at the top edge of a cylinder of the syringe, - a receiving body with a second receptacle and a second opening at the bottom end in the housing for inserting a second fastening section on a plunger of the syringe, - first means for releasably holding the first fastening section in the first receptacle, - second means for releasably holding the second fastening section in the second receptacle, - first means for displacing the receiving body in the housing away from the first receptacle, - second means for displacing the receiving body toward the first receptacle in steps by an increment corresponding to the liquid volume to be ejected by the syringe in the steps, - an actuation element which can be actuated outside of the housing for executing individual steps, - a toothed rack with teeth arranged in the housing and connected to the receiving body, - a pawl pivotably mounted in the housing on the actuation element which engages with the teeth of the toothed rack and entrains the toothed rack when the actuation element is displaced downward, and disengages with the teeth when the actuation element is displaced upward, - an adjustable adjusting element for adjusting the increment of the steps that can be adjusted outside of the housing, - a cover displaceably arranged on the toothed rack on the side of the pawl with a holding surface facing the pawl, for holding the pawl from engaging in the teeth, and a catching edge at the bottom end, below which the teeth are exposed for engagement by the pawl, - a coupling element arranged on the cover that is coupled to the adjusting element to transfer an adjustment of the adjusting element to the cover, - wherein the cover has a first cover part consisting of plastic that comprises the coupling element and a longitudinal slot, and a second cover part, consisting of sheet metal held on the first cover part, that comprises a bend arranged in the longitudinal slot and an associated leaf spring, - the toothed rack on the side facing the cover has a projecting cam that contacts the bend in the longitudinal slot at the end of the displacement of the receiving body toward the first receptacle, whereby the leaf spring is deflected, and the pawl is held by the leaf spring from further engagement in the teeth of the toothed rack, characterized in that - the catching edge is formed on the first cover part, - with the exception of a section comprising at least the bend and leaf spring, the second cover part is overmolded by the plastic of the first cover part in a specific position of the bend with respect to the coupling element which securely connects the first cover part and second cover part to each other. - a strip-shaped housing, - a first receptacle with a first opening at the bottom end of the housing for inserting a first fastening section at the top edge of a cylinder of the syringe, - a receiving body with a second receptacle and a second opening at the bottom end in the housing for inserting a second fastening section on a plunger of the syringe, - first means for releasably holding the first fastening section in the first receptacle, - second means for releasably holding the second fastening section in the second receptacle, - first means for displacing the receiving body in the housing away from the first receptacle, - second means for displacing the receiving body toward the first receptacle in steps by an increment corresponding to the liquid volume to be ejected by the syringe in the steps, - an actuation element which can be actuated outside of the housing for executing individual steps, - a toothed rack with teeth arranged in the housing and connected to the receiving body, - a pawl pivotably mounted in the housing on the actuation element which engages with the teeth of the toothed rack and entrains the toothed rack when the actuation element is displaced downward, and disengages with the teeth when the actuation element is displaced upward, - an adjustable adjusting element for adjusting the increment of the steps that can be adjusted outside of the housing, - a cover displaceably arranged on the toothed rack on the side of the pawl with a holding surface facing the pawl, for holding the pawl from engaging in the teeth, and a catching edge at the bottom end, below which the teeth are exposed for engagement by the pawl, - a coupling element arranged on the cover that is coupled to the adjusting element to transfer an adjustment of the adjusting element to the cover, - wherein the cover has a first cover part consisting of plastic that comprises the coupling element and a longitudinal slot, and a second cover part, consisting of sheet metal held on the first cover part, that comprises a bend arranged in the longitudinal slot and an associated leaf spring, - the toothed rack on the side facing the cover has a projecting cam that contacts the bend in the longitudinal slot at the end of the displacement of the receiving body toward the first receptacle, whereby the leaf spring is deflected, and the pawl is held by the leaf spring from further engagement in the teeth of the toothed rack, - the catching edge is formed on the first cover part, - with the exception of a section comprising at least the bend and leaf spring, the second cover part is overmolded by the plastic of the first cover part in a specific position of the bend with respect to the coupling element which securely connects the first cover part and second cover part to each other.