Micro Electric Discharge Machining (Micro-EDM) has emerged as a crucial technology for producing precise microstructures in various industries. Micro components require high-quality and surface finishes, but traditional micro-EDM methods cannot always produce the desired outcomes. Another important problem is electrode wear, which can possibly reduce accuracy, increase downtime for replacement, and increase operating expenses, particularly when cutting hard materials or performing complex operations. This paper investigates the application of step EDM assisted micro drilling on SS304 with diameters of 400 and 500 μm diameters brass electrodes. Experiments are planned based on tool rotation, voltage, and energy consumption. The machined surfaces are analyzed via optical microscope and FESEM. Results revealed that debris deposition at the bottom surface leads to the formation of surface defects like fractures, melted material, and recast layers. Furthermore, lowest tool wear rate (TWR) 0.0029882 mm3/min was found at 400 μm diameter, 600 RPM, 90 V, whereas, maximum is reported 0.0109966 mm3/min, at 800 RPM with same conditions.