Short Body Nema 17 Bipolar Step Motor 3.5V 1A 18.4oz.in/13Ncm DIY CNC Short Height 13Ncm(18.4oz.in) holding torque NEMA 17 bipolar 1.65"x1.65"x0.79" 4-wire 1.8 deg. step angle(200 steps/rev) Rated current 1.0A & resistance 3.5ohms