Dimensions: 42mm x 42 mm x 34 mm (L x W x W)
Movement angle: 1.8 degrees
Resistance / phase: 1.5Ω
Current / phase: 1.5 A
Holding torque: 0.22 Nm (minimum)
Inductance / phase: 2.8 Mh

NEMA17 – KS42STH34-1504A Stepper Motor – 1.5A – 34mm is the most popular motors used to build 3D printers, milling machines, plotters, and other electronically controlled devices.