[High-Quality Material] Crafted from durable 45# steel, ensuring robustness and reliability in usage.
[Universal Joint Coupling Size] Fits shafts ranging from 5mm to 5mm, connecting via M3 fastening screws. Outer diameter: 12mm, length: 52mm.
[Precision Installation] Assemble by placing each half of the coupler onto the connected shafts, then adjust and align them accurately for seamless operation.
[Versatile Application] Ideal for connecting and synchronizing different shafts to rotate together, transferring torque effectively. Suitable for RC model cars, boats, 3D printers, snow machines, and DIY projects like grinders.
[Package Contents] Includes 1 universal joint coupling, 1 wrench, and 4 screws for comprehensive assembly.