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
Nanotec Stepper Motors: NEMA 6-42. 14-110 mm. Up to 13.5 Nm
NEMA 23 Stepper Motor - High Torque Series - OpenBuilds Part Store