The Gregoire Besson VKE and VKE K (folding) rotatory harrows have a working width of 3 to 8 meters and are ideal for soil preparation after plowing and for sowing on pre-loosened soil. The VKE model is ultra enduring because of its one-piece gear housing (8mm thick) and driving system through helical pinions. The whole volume of earth passes through the tines, which ensures a homogeneous finish.