One of the most extraordinary three-in-one machines of this century is a digger derrick truck. This is a very versatile piece of equipment since the truck has three different applications that include: excavating holes, hoisting heavy objects, and lifting workers to various heights. So it performs the functions of an auger drill, mobile crane, and bucket truck combined into one powerful vehicle.Because of this, no one is allowed to operate this monstrous machine without possessing a special license in order to ensure the safety of both the driver and the people close to the equipment.
