Aerating the lawn is crucial for long-lasting ventilation and thus for healthy growth of a dense and lush green lawn. Experts recommend aerating the area about twice a year. A motorized device makes this task significantly easier. However, the blade shafts are subjected to considerable stress, especially in heavy and dry soils. Sooner or later, this wear part will need to be replaced. This replacement blade shaft is suitable for all 35 cm scarifiers from WOLF-Garten.