Electrical Discharge Machining (EDM) is a widely used non-conventional machining method for shaping complex parts with high precision. The choice of tool electrode material plays a crucial role in determining the efficiency and surface integrity of the machined workpiece. Optimizing and analysing different tool electrode materials like copper and aluminium can significantly improve the EDM process in terms of surface finish and overall performance. Surface integrity, a key challenge in EDM, has been the focus of recent studies. This research examines the impact of various electrode materials and process parameters such as discharge current (Ip), pulse on time (Ton), and duty cycle (τ) on surface integrity. Specifically, surface roughness and the formation of surface cracks, both critical factors influencing surface integrity, have been evaluated in this study.