Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA : ID 324 : $14.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Oukeda 17HS4401 Nema 17 - Stepper Motor 3 Vcc - 1,68 A - Angle 1.8° - 200 Steps -
Iverntech Nema 23 Stepper Motor 57x56mm Body 1.8 Stepper Angle 2.0A 2 Phase 4-Lead with 80cm Cable for 3D Printer, CNC Machine and Robotics: Amazon.com: Tools & Home Improvement