The traditional OLT Sava disc harrows (20, 24, and 28 discs) are used to prepare soil before to planting and after plowing. The grip width varies across the models: 20 discs are around 1.8 m, 24 discs are roughly 2.1 m, and 28 discs are roughly 2.4 m. Typically, the discs have a diameter of 460 mm and operate between 8 and 12 cm below the surface.

Thanks to Drljan