![](https://kb-3d.com/store/1120-large_default/stepper-motor-shaft-rod-axle-coupler-various-sizes.jpg)
This straight shaft coupler is offered in multiple bore sizes to act as a connector or reducer. They are made of anodized aluminum and rigid for high torque conversion. Includes 4 set screws.
Diameter: 12mm
Length: 20mm
Diameter: 16mm
Length: 25mm
All types come with (4) M4x0.7 set screws.