The Long Brass Hexagonal Coupling Coupler Guide Shaft is an essential component for hobbyists and model enthusiasts. Crafted from high-quality brass, this coupler offers reliable performance and durability for connecting motor shafts to hexagonal in , robots, and other model projects. With a total length of 30mm and a hexagonal diameter of 12mm, this shaft is engineered for precise , ensuring optimal functionality. It features various hole sizes, allowing for versatility in applications, from small models to larger builds. Whether you're upgrading your equipment or starting a new project, the complete package comes with two screws and a spanner, making installation a breeze. Elevate your model experience with this practical and sturdy coupling solution.