The Bracke T28.a is a robust, flexible disc trencher that can tilt the discs to lay the humus in the same direction, left or right or facing toward or away from each other. The Bracke T28.a can handle the harshest terrain conditions with a lot of rocks and slash. Scarification with the Bracke T28.a provides many planting spots for plants and seeds regardless of terrain type. It is mounted on medium-sized or large prime movers.