FIELD: mining, particularly, devices for changing direction of boreholes. SUBSTANCE: essence of invention consists in that device eccentric body and working whipstock are interconnected through hinge for subsequent rigid fixation to each other. In this case, axial moment of sum of eccentric weight of body exceeds moment of sum of eccentric weight of working whipstock. EFFECT: extended application of eccentric whipstocks under field conditions. 1 dwg
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