7ncmSTEPPERON 0.9deg Thin Nema 14 Stepper Motor Bipolar 0.5A 7Ncm10oz.in ?36x12.5mm 4STEPPERON 0.9deg Thin Nema 14 Stepper Motor Bipolar 0.5A 7Ncm10oz.in ?36x12.5mm 4