FIELD: oil production equipment. SUBSTANCE: invention refers to drilling gears intended to drill second shafts of oil and gas wells. Self-aligning deflecting tool comes in the form of upper body presenting deflecting wedge and lower body mounted for relative displacement and is fitted with two chambers of variable volumes: hydrostatic pressure chamber located in upper body and atmospheric pressure chamber placed in lower body. Chambers are hydraulically isolated one from another during transportation of deflecting tool along shaft of well and are joined in case of installation and anchoring of deflecting tool in well. EFFECT: raised reliability of anchoring of deflecting tool in inclined wells. 3 dwg
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