Depending on the directional drill you are using, it may use different types of locating systems in order to keep the drill going in the right direction. It may utilize a walk over locating system, a wire line locating system, or a gyro-based locating system. The drill generally has a lift on it as well, which can help to change the angle of the drill when it enters and bores through the ground. They have controls that make operation very simple too, but it should still only be used by those who have the proper training.