... 43.6156SM86HT156-4208ASM86HT156-4208B4.21.2581228Products Options:Torque: 2.5 to 5,700 Ounce-InchesStep Angle:1. ... 8 and 0.9,3.6 Degree,Square-Bodied, High-Torque Stepper Motors ... . Round version, Standard stepper motors.Phase:2,3,4,5 PhaseUp to Six Stack Lengths, Several Windings ... 34 Hybrid Stepping Motor, Frame size 86mm, with different length and holding torque