Made of premium aluminum material, it is durable and long lasting use.
Shaft coupler often used to connect servo motor, stepper motor, encoder, screw driving, machine platform, etc.
The motor shaft coupler provides an extremely tight grip without marring the shaft.
Compatible with stepper motors (for 5mm shaft diameter). Fits for RepRap 3D Printers or small CNC machines.
Size: About 2.5 x 1.9 x 1.9cm/1 x 0.7 x 0.7inch(LxWxH).