RepRap Geared Stepper
Nema17 48mm body stepper motor
Rated current: 1.68A
Motor holding torque: 0.5N.m
Planetary gear, ratio 5.18:1
The geared nema17 are widely used in applications, and popular is for RepRap 3D Printer Extruder.
New arrival: G17-48-C5X30 and G1748-C19X30
It's suitable for Step Extruder from RobotDigg
https://www.robotdigg.com/product/1263
https://www.robotdigg.com/product/404
Geared stepper motor NEMA17 with flange mounting face G17F5-48