Nema 23 Stepper Motor 3Nm 4-lead 3A 112mm 57 Motor Stepping Motor for 3D Printer CNC Engraving Milling Machine Nema 23 Stepper Motor 3Nm 4-lead 3A 112mm 57 Motor Stepping Motor for 3D Printer CNC Engraving Milling Machine. Sale price : $21.70 Category : Home Improvement