nema17 stepper motor 1.7a 40n.cm 42x40mm 17hs4401s-sz two aixs motor laser 42 motor for 3d printer monitor equipment

features: 1.adopting motor steel material, with high torque, low self-inductance reactance, responsive and can avoid system error. 2.there is rotor rubber covering the rotor, effectively reduce the noise. 3.this small motors can be used in various area, such as stage lighting; laser engraving; textile machinery; equipment; placement machine; non-standard equipment; 3d printer; automation equipment, and etc. descriptions: 1.and durable in use.