Aluminum Flex Shaft Coupler - 5mm to 5mm for Stepper Motors
If you are building a 3D printer from scratch, you might this coupler. It is designed for 5 x 5 mm bore sizes. It is durable and easy to install.
- Bore: 5 * 5MM
- Outer diameter: 20MM
- Increased Load-carrying Capacity
- Length: 25MM