0.9° Nema 17 Stepper Motor 2 Phase High Torque 0.09Nm(12.75oz·in) Bipolar 0.4A 9.1Ω 42x21mm 4-Lead Shaft 17mm φ5mm 42 Stepper Motor Cable 1M for 3D Printer DIY Robot CNC Machine

High-torque 0.9° NEMA 17 stepper motor for compact machines
✔️ 0.9° step angle; 9 Ncm holding torque; 4-wire bipolar; 1 m cable

Designed for compact, high-torque motion in hobby CNCs, 3D printers, and robotics applications. This NEMA 17 pancake motor delivers strong torque in a small footprint.

✅ Step angle 0.9° (400 steps/rev) two-phase bipolar design
✅ Holding torque 9 Ncm (12.75 oz·in) for solid, precise drive
✅ Resistance 9.1 Ω and inductance 12.5 mH ±20% for smooth current control
✅ Body size 42x42x20.4 mm with 31 mm mounting hole distance
✅ Shaft Ø5 mm, length 17 mm; 4-wire cable (Black A+, Green A-, Red B+, Blue B-)
✅ Cable length 1 m; weight ~119 g; includes robust steel core construction

Parameter	Metric	Inches
Body size	42×42×20.4 mm	1.66×1.66×0.81 in
Installation hole distance	31 mm	1.22 in
Shaft diameter	5 mm	0.20 in
Shaft length	17 mm	0.67 in
Weight	119 g	4.2 oz

💡 What is a 0.9° NEMA 17 stepper motor used for in hobby printers and CNC setups? A handy, compact motor that delivers precise steps and steady torque. - Used for precise positioning in 3D printers, laser cutters, and small CNCs - Provides 400 steps per revolution with 0.9° step angle for fine control - Features 9 Ncm holding torque and 4-wire bipolar cable for easy driver wiring