FIELD: mining industry, namely, rock-destroying tools, possible use for drilling wells.
SUBSTANCE: drill bit consists of body, paws with rolling cutters, shifted in transporting position in axial direction relatively to each other, and springs. Tails of paws have flat shape and are made with through longitudinal grooves of various length, in which during sliding mounting fastening elements are positioned at various levels relatively to end of bit in its working position for holding paws in the body.
EFFECT: substantially simplified construction of rolling cutter bit, simplified process of its transfer from transport position to working position and vice versa.
3 cl, 2 dwg
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