FIELD: deep boring technology. SUBSTANCE: device has body with wedges with screw dies placed on it. Under every wedge insert with supporting planes is placed. Device also has centralizer made of two halves, wedges bracket, stops, mounted under dies, and wedges drive. Fixing part of canted leading pipe has body with rotating inserts, cover and cleaning means. Exiting aperture of body and of cover of fixing part is larger than diagonal of canted square or hexagonal leading pipe. Rotating inserts in the fixing part of leading pipe are equipped with upper and lower limiters of rotation and falling out inside. On the ends of lower end of fixing part body under rotating inserts conical driving fingers are placed. On the outer side along all length of leading pipe fixing part between conical drive fingers recesses for wedge dies are made. Above rotating inserts in the cover cleaning means for leading pipe is placed. Device is capable of transferring torque in case of deviation of leading pipe and exiting rotor aperture from alignment. Transfer of large torques through inserts is excluded. EFFECT: forced centralizing of fixing member with leading pipe by wedges in case of misalignment of wedge and wedge recess in fixing member of leading pipe. 5 cl, 10 dwg
