FIELD: oil industry; gas industry. SUBSTANCE: controller has pressure transducer 1, amplifier 2, low-pas filter 3, pressure indicator 4, comparator 5, sound signal conditioner 8, working pressure set-point device 6 and maximum safe pressure set-point device 7, control unit 9, weight transducer 10, weight set-point device 11, weight indicator 12. EFFECT: higher reliability; longer boring tool service life due to chisel torque constancy and drill pipe string bottom vibration reduction. 2 dwg
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