The present invention is a rail system cheese cutter comprised of an arched cutting surface, rail and cutting arm with a removable cutting wire and tension adjustment component which allows the user to adjust the tension of the wire. The rail has a milled portion where the cutting arm is to be attached to the rail. One end of the cutting arm has a rotational bearing with a slot and opening. The slot is slid around the milled portion of the rail until the rail rests in the opening of the rotational bearing. Once attached, the cutting arm can be pivoted around the rail and moved laterally along the rail allowing the user to uniformly cut or slice a food item without moving it.