Nema 8 Bipolar Smallest Stepper Motor 1.6Ncm/2.3oz.in 1.8deg 28mm 0.2A 4 Leads Smallest Stepper Motor 1.6 Ncm(2.3 oz.in) holding torque NEMA 8 bipolar 0.79"x0.79"x1.1" 4-wire 1.8 deg. step angle(200 steps/rev) Rated current 0.2A & resistance 24ohms