Nema 23 CNC Stepper Motor 2.8A 178.5oz.in/1.26Nm CNC Stepping Motor DIY CNC Mill Higher Torque 1.26Nm(178.5oz.in) holding torque NEMA 23 bipolar 2.24"x2.24"x2.2" 4-wire 1.8 deg. step angle(200 steps/rev) Rated current 2.8A & resistance 0.9ohms