An auger is a spiral blade drilling rig that includes a rig frame, a slide on the frame, and a reduction box that slides up and down the slide. The gearbox is connected to the power input shaft and the PTO shaft. The other end is connected to the hydraulic motor, the other end of the PTO shaft is connected to the drill pipe, and the lower end of the drill pipe is connected to the drill bit, which can be widely used in orchard planting, municipal engineering, etc.