A surgical apparatus for coagulating and cutting tissue includes a handle assembly and a tool cartridge. The tool cartridge includes electrically conductive movable tools, such as jaws and a blade, for cutting tissue. The jaws and blade each are connected to a transmission to facilitate movement. Multiple sheaths are used to encompass and protect the transmissions. Slidable grips are disposed outside of the sheaths and operatively connected to the transmissions that are disposed within the sheaths. At least one lever is supported by the handle assembly and engagable with the grips to facilitate movement of the grips, and thus, the tools.