Cutting knife

A reciprocally moveable cutting knife is described and which includes an elongated main body having a first, and an opposite, second end for engaging an object of interest; and a protrusion is made integral with the elongated main body and which extends outwardly from a plane which is defined by the outside facing surface of the main body, and which inhibits an adhesion from being created between the outside facing surface of the elongated main body, and the respective sidewails of a knife guidance track when a source of water wets the outside surface of the elongated main body and the spaced sidewails of the knife guidance channel.