These investigations were carried out to determine possible correlations between the EDM machining parameters (pulse on, current) and the machineability components (stock removal, electrode wear, overcut, surface finish and surface integrity). The surface integrity of the component depends on its conformity to tolerance, its surface finish and the metallurgical subsurface characteristics. The present work indicates a correlation between the overcut (gap B) and the total thickness of the damaged surface layer (white layer and heat affected zone)