The Hitec HS-5645MG Digital High Torque Servo Motor represents the latest generation of Hitec servos. With a custom designed programmable digital circuit and their unique Alumite/ MP gear train technology the HS-5645MG has our infamous un-breakable gear train. The powerful HS-5645MG is perfect for those applications that demand a high torque servo. Direction of rotation can be reversed, and angle of travel can be extended (180 degrees max) using a Hitec servo programmer.