Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA : ID 324 : $14.00 : Adafruit Industries, Unique & fun DIY electronics and kits
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High Quality 2-phase 4-wire 42mm Stepper Motor 0.2 N.m 17 Teeth Stepping Motor 1.8 Degrees Stepper Motor Power Motor Accessories - Stepper Motor - AliExpress