The tillage implement plowshare acts on the soil similarly to a wedge-ripper. This is the most loaded and fast wearing part. The wedge-ripper blade when worn usually becomes dull quickly, and an occipital chamfer is formed on the back side. It creates additional traction resistance, prevents the blade introduction into the processed area, reduces the productivity and quality of agricultural implements work. (Research purpose) To determine the occipital chamfer inclination angle influence of the wedge-ripper in the range of 5-25 degrees on the resultant loading force characteristics. (Materials and methods) The authors conducted laboratory tests of wedge-ripper experimental samples made with different occipital chamfer inclination angle on the blades edges back sides. The authors used installation for accelerated testing of soil-cutting parts and strain gauging equipment. On all samples, the wedge-ripper front surface inclination was set to 30 degrees. They changed the occipital chamfer inclination angle from 5 to 25 degrees. (Results and discussion). The authors found out that a change in the occipital chamfer inclination angle was accompanied by a change in energy indices during its movement in a sandy area. It was determined that the lower layer of the sandy area in the zone of the occipital chamfer did not fully penetrate the lower layers, and with an increase in the occipital chamfer inclination angle, a part of the sandy layer was unloaded in front of the blade and hit the wedge-ripper front surface. (Conclusions) The authors found out that with an increase in the occipital chamfer inclination angle at the blade edge, the wedge-ripper resistance increased when it was moved in a granular area. It was found out that in the contact zone between the occipital chamfer and the lower layers of the processed area at small inclination angles up to 5 degrees, the layer was crushed, and when the angle was increased to 25 degrees, additional unloading of the area in front of the blade was observed, which increased the working body resistance and the total energy consumption of the work process. The authors showed that for a direct wedge-ripper, the vector inclination angle of the resultant force to the horizontal decreased from 20 to 17 degrees.