This bipolar Nema 17 stepper motor with step angle 1.8deg and size 42x42x48mm. It has 4 wires, each phase draws 0.64A, with holding torque 60Ncm (85oz.in). Electrical Specification Manufacturer Part Number: 17HS24-0644S Motor Type: Bipolar Stepper Step Angle: 1.8 deg Holding Torque: 60Ncm(85oz.in) Rated C..