NEMA 23 two poles 5.7 x 5.7 x 11.3 cm 4-wireThis is the strongest model for NEMA 23 1.8 deg.Stepper motor, angle cm (200 steps / industry).Each stage absorbs 4.2 A and one carries 3.0 nm of torque (425 oz. in.).Manufacturer Part Number: 23hs45 - 4204sMotor Type: bipolar StepperStep Angle: 1.8 degrees.Hold torque: 3.0 nm ( 425 oz. inch)Current rating / Stage: 4.2 AStage: 0.9 ohmsinductance : 3.8 MH + / - 20 % (1 kHz)X Shaft diameter: 10 MMShaft length: 24 MMd-cut Length: 20 MMNumber of leads: 4Wire length: 400 MMSize:5.7 x 5.7 x 11.3 cmMaterial:metalColour:blackPackage Contents:1 * MOTOROnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.