The mortar stirrer can be used with the Einhell GP-EA 18/150 Li BL cordless earth auger. The mortar stirrer turns the cordless earth auger into a practical 2-in-1 device that comes in handy when setting up a fence, for example. In the first step, the holes for the fence posts can be drilled into the ground with the auger, and then the foundation for the fence posts can be prepared with the mortar stirrer attachment. Thus, the mortar stirrer with a diameter of 120 mm, a length of 65.5 cm and a weight of 1.3 kg is the perfect accessory for the Einhell GP-EA 18/150 Li BL cordless earth auger.