Features:
Size: Outer diameter X length: D14mm x L25mm, connection aperture: 3.17mm to 6mm.
Made of high-quality aluminum alloy, with high torque rigidity, low inertia and good sensitivity.
Cylindrical rigid coupling, with 4 fastening holes on the surface, equipped with 4 machine screws and 1 matching hexagon wrench.
It connects two shafts to transmit power and torque, and play a protective role when the load is too large. It is suitable for blowers, 3D printers, DIY robots, CNC machine tools, stepper motors, etc.
Warm reminder: Rigid type basically does not allow eccentricity, and must be fully adjusted during use.

Specifications:
Color: Dark Red.
Material: Aluminum Alloy.
Size: D14mm x L25mm.
Connection aperture: 3.17mm to 6mm.

Note:
Due to the light and screen difference, the item's color may be slightly different from the pictures.
For manual measurement, there may be an error of 0.5-1mm, thank you for your kindly understanding.

Package included:
1 x coupling connector.