YYDS Titan Extruder Stepper Motor 4-lead Nema 17 22mm 42 Motor for 3D PrinterOOTDTY  3D printer parts Titan Step motor for Titan Extruder 3D printer extruder 42x42x23mm Product name: Titan step motorSize:42x42x23mmPhase: 2 PhaseVoltage: 12VCurrent: 0.8A/PhaseResistance: 4.0 ± 10%Ω/PhaseInductance: 3.2 ± 20% mH/PhaseHolding Torque: 16 N.cmInsulation Class: BStep Angle: 1.8±5% /STEPWarning: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.Packing list:1 x Titan step motor1 x 1m Cable