Micro Stepper Motor Nema 11 Bipolar Stepping 0.67A 17oz.in/12Ncm 1.8deg 4 Leads NEMA 11 Hybrid bipolar stepper motor, 12Ncm(17oz-in) holding torque Frame Size 28 x 28mm, Body Length 51mm 4-wires (Black, Green, Blue, Red) Rated current 0.67A ,Step Angle 1.8, resistance 9.2ohms Shaft Diameter 5mm , Shaft Length 20mm