12V 10Rpm 60mm Geared DC Motor is a great choice for projects that need high torque and lower speed. The motor works on 12V DC and its free running current is 0.4A. Shaft diameter of the motor is 8mm and its shaft is 20mm long. Motor length is 135mm and 75mm with and without the gearbox, respectively. Motor diameter is 38mm and it has 4 M5 screw holes for mounting.