In the world of mechanical engineering and design, the choice of components can significantly influence the performance and efficiency of machinery. One such component that has garnered attention in various applications is the hex shaft. Traditionally utilized in power transmission systems, hex shafts are lauded for their simple design and reliable functionality. However, as technology advances and demands for higher performance escalate, engineers and designers are exploring alternatives that may offer enhanced efficiency, flexibility, and overall functionality. The limitations of hex shafts are becoming increasingly apparent, particularly in applications that require precision and adaptability. Factors such as torque transmission, weight, and compatibility with modern materials are prompting a reevaluation of…