This bipolar Nema 17 stepper motor with step angle 1.8deg and size 42x42x39mm. It has 4 wires, each phase draws current 1.5A, with holding torque 45Ncm (63.74oz.in).
Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor.