Feature: 1. Smart Control: Ensuring quick response on instantly start and quick stop, which also enables better control on the operation. 2. Extensive Use: Allows for wide application on a variety of 3D printers, lathes, engraver machines and so on, very useful. 3. Reliable Work: Using silicon steel rotor, the stepper motor has large torsion and stable output, low noise and very durable. 4. Strong in Power: Adopting copper coil motor, the 2 phase stepping motor with driver will largely improve your efficiency. 5. Easy to Install: Light in weight and compact in size, the standard step motor can be quickly installed within minutes. Specification: Item Type: 3D Printer Stepper Motor Product Model: ZT-42HS4822-1501 Step Angle: 1.8°±5% Phase: 2 Phase Rated Voltage: DC 10.2V Rated Current: 1.5A Motor Driver Parameters: Model: SD42 Drive Current: 1.0-4.2A Input Signal Voltage: DC 20-50V Input Pulse Frequency: 1-200KHz Input Pulse Width: 250-5E+8(NS). Package List: 1 x 3D Printer Stepper Motor1 x Stepper Motor Driver