High Precision NEMA 23 Stepper Motor Model 57HS56-3004A635-D21, equipped with an integrated timing pulley, shaft coupler, and solid mounting bracket. This stepper motor delivers up to 3Nm torque, operates at 3A current with 4-wire configuration for easy integration with various driver systems. Ideal for CNC machines, 3D printers, robotics, and automation systems requiring smooth, accurate, and reliable motion control.