A surgical instrument kit comprising: (a) a robotic arm comprising a first jaw including a first bipolar electrode and a second jaw including a second bipolar electrode, wherein at least one of first jaw and second jaw is repositionable with respect to the other jaw; (b) a first surgical tool head including a first electrical load in electrical communication with a first pair of electrical terminals, the first surgical tool head adapted to be removably coupled to the robotic arm; and, (c) a second surgical tool head including a second electrical load in electrical communication with a second pair of electrical terminals, the second surgical tool head adapted to be removably coupled to the robotic arm, where the first pair of electrical terminals of the first surgical tool head are adapted to engage the first bipolar electrode and the second bipolar electrode to establish electrical communication between the first bipolar electrode and a first of the first pair of electrical terminals and between the second bipolar electrode and a second of the first pair of electrical terminals, and where the second pair of electrical terminals of the second surgical tool head are adapted to engage the first bipolar electrode and the second bipolar electrode to establish electrical communication between the first bipolar electrode and a first of the second pair of electrical terminals and between the second bipolar electrode and a second of the second pair of electrical terminals.