This study focuses on developing Spur Gear parts for electric hedge trimmers using precision cold forging technology. The existing product faced lifespan and quality issues, leading to frequent replacements and increased costs. To address these problems, we implemented a three-stage cold forging process, which enhances product durability and reduces expenses. Previously, Spur Gear parts were produced using traditional machining methods, including CNC machining, gear hobbing, and MCT machining. However, these methods resulted in frequent damage, contributing to higher costs. By transitioning to a three-stage cold forging process, we aim to significantly improve the lifespan of the product.