FIELD: process engineering.
SUBSTANCE: invention relates to machine building, particularly, to combination diamond tools. Proposed tool comprises shank and working head arranged at shank end and shifted relative to tool rotational axis toward its deflection. Said shank is stepped. Working head is attached to shank by its smaller-diameter step. Extra cutting element is arranged on larger-diameter step end face surface to make a part thereof. Cutting tool is arranged on end face surface with shift in circumference through 85-95 degrees from working tool point with maximum distance from tool rotational axis.
EFFECT: recess with end face perpendicular to bore axis.
2 dwg
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