Nema 17 Bipolar Stepper Motor 1.8deg 16Ncm (22.6oz.in) 1A Extruder Motor 42x42x20mm 4 Wires | 3DAndy.com
Amazon.com: Twotrees Nema17 Stepper Motor 17HS 4023 Stepper motor Bipolar 42 Motor 4-Lead Wire with 1m Cable 23mm 42BYGH 1.5A Motor for CNC XYZ 3D Printer : Industrial & Scientific
Amazon.com: STEPPERONLINE Short Body Nema 17 Bipolar Stepper Motor 1A 22.6oz.in/16Ncm DIY CNC Extruder : Electronics
Nema 17 Bipolar Stepper Motor 28N.cm 0.4A 12V 4 Wire For CNC/3D Printer