The moldboards of the moldboard plows are used to turn over the soil. They have a very important role in tillage work, they can turn over about 30-50 cm of soil. There are different shaped moldboards that can be used for different types of work and soil and the desired degree of pulverization. The cylindrical and universal moldboards have an elevation angle of 40º and the helicoidal moldboards the elevation angle is 30º. The angle that determines the degree of pulverization is also different. In the cylindrical and universal moldboards the angle is between 30-35º and in the helicoidal moldboards it is between 25 and 28º. The angle that determines the degree of pulverization is the one that forms the direction of travel from the joint between the plowshare and the moldboard on the wall of the furrow and the tail piece of the moldboard.