This project focuses on developing specialized tools for the finishing process of large spiral bevel gears, which are crucial components in marine transmission systems. These gears require precise machining to ensure smooth operation and durability under high-stress conditions. The development of custom tools will improve the accuracy, efficiency, and cost-effectiveness of manufacturing these gears, enhancing the performance and reliability of marine propulsion systems. By tailoring tools for specific gear designs, the project aims to address challenges such as minimizing gear backlash and optimizing load distribution, ensuring better gear engagement and smoother operation in marine applications.