This is a brand new electric gear motor that has extremely high torque to handle many heavy-load applications. The specifications are listed below: Rated Voltage: 13.5 VDC Rated Speed: 50 RPM Rated Load: 60 Watts Rated Torque: 6 N-m (4.4 ft-lb) Mounting: M6 screw holes Shaft: 10mm shaft with 2 flats where flat to flat is 6.6mm and threaded end to fit a M6 tightening nut