One of the unbeatable benefits of the RoTeC pro single disc coulter is the splitting of the sowing depth and the reconsolidation. In this way, when a stone is passed, the coulter is raised just once. Furthermore, the coulter and roller pressure can be adjusted independently to each other so that, under dry conditions then less coulter pressure and more roller pressure can be applied. Whereas under moist conditions, however, more coulter pressure and less roller pressure is the better solution. This very even and exactly-controlled coulter guidance of the RoTeC pro single disc coulter is ensured by the Control 10 depth guidance disc with its 10 mm contact area or the Control 25 depth guidance roller with its 25 mm contact area which are mounted directly on the coulter. The plastic discs, fixed on the coulter, keep the placement zone behind the furrow former clear from blockages and ensure an accurate seed placement. The basic adjustment of the sowing depth range is done without tools and in 4 steps directly on the coulter.