Our disc harrow is maily suitable for crushing the clods after tillage, leveling the field before seeding, loosening the soil, mixing the soil and fertilizer, and cleaning the stubbles in light soil. It has features on reasonable construction, firmness to stand, long-lasting operation, easily handling and maitainance, well ability to crush clod, and smooth field after tillage, etc. Disc harrows are suit to the tractors three point linkages. Additionaly, consumers desires there can be use as trailed. Disc harrows are formed; On steel square rods arranged in row with bearings. High resistance, hot treatment disc set frames and that sets connected main frame.