Wire Cut EDM process is extensively used where the conventional machining process are not useful. A metal wire with dielectric medium travels through a path and perform machining. The paper envisaged about the control parameters required for machining of tool steel. EN 31 is used vastly in engineering applications. The work roll of rolling mill and many tools like dies and punches are manufactured by EN 31 and En 31 modified. The main objective of the research paper to analyze the cutting and Metal removal