FIELD: mining.
SUBSTANCE: device comprises a body, a working organ, a mechanism of tunnelling direction control, which is made in the form of a tip installed in the front part of the body with the possibility of angular displacement, connected with a piston, a spring, a chamber, connected with channels for energy resource supply, and a navigation device fixed in the body, besides, the spring with its rear end is fixed on the front end of the piston, and with the front end - on the body, at the same time the read end of the piston contacts with the specified chamber.
EFFECT: arrangement of a tunnelling direction control mechanism inside a device body prevents negative effect of soil in process of well tunnelling.
3 cl, 4 dwg
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