A description is given of a tool for laying insulated cables soldered to a contact element at at least one end by a soldering unit that solders the uninsulated cable end to the contact element. The invention is notable for a combination of the following features: a feed unit feeds the cable to be laid into the operating area of the solder unit and an insulation stripping unit for the cable end to be soldered, has at least one cutting element which cuts through the insulating material of the cable end to be soldered and can be moved towards the cable.