Work tillers body is designed for soil. The working body is made of carbon steel with low hardenability ideal critical diameter thickness 0.5-0.8 body 1 and subjected to a body-surface hardening with autotempering. The working body comprises a body 1 consisting of the surface layer 2 and the core 3, fastening elements 4 and the working portion 5. The surface layer 2 of the body 1 is made of tempered martensite with a hardness of 55 ... 60 HRC, but its core 3 consists of a troostite or troostosorbita, or sorbitol with a hardness in the center is 10 ... 20 HRC hardness of the surface layer is less than 2. The fastening elements 4 are formed with a microstructure and hardness of the core 3 of the body 1. The working part 5 consists of a cutting portion 6 and a transition portion 7, which has two surface layers 8 variable TNT tires and the central layer 9. The cutting portion 6 is entirely composed of tempered martensite with a hardness less than 64 HRC. Two transition surface layer portion August 7 composed of tempered martensite with a hardness less than 64 HRC, but its core layer 9 is formed with a microstructure and core hardness. Around each fastening element 4 are arranged in the zone 10 as a cylinder with a diameter twice its diameter, a height equal to the thickness of the body 1, with the microstructure of the core 3 of the body 1 and with a hardness of not less than 4 more than the hardness HRC of the core 3 of the body 1. On the surface layer 2 of the body 1, the cutting station 6 and 8 on the surface layers of the transition portion 7 is effective layer 11 in the form of plastically deformable martensite thickness not less than 0.4 mm with a height of microroughness on the surface thereof of not more than Rz = 50 microns and a hardness not less than 2 HRC pain ie the hardness of tempered martensite.Increased operational reliability of the working member is provided that around each attachment element 4 is zone 10 in the form of a cylinder with a diameter twi
