Sunco Row Cleaners with exclusive disc concavity, unique tooth design, and disc separation, allow planting in the toughest trash conditions without plugging! The Screw Adjust models can be adjusted without crawling underneath the planter. Saber Tooth design gives positive rotation to reduce plugging in heavy trash conditions. Will continue to operate in wet conditions. Tills soil surface to reduce crusting. Easy to read depth indicator with hand or power wrench adjusting knob. Can be easily adjusted to move trash only or both trash and soil without plugging.