FIELD: machine engineering.
SUBSTANCE: drilling system contains the drilling head, attached to the holding body by reciprocal mating surfaces by rotating the drilling head relative to the holding body around the tool axis until at least one protuberance of "dovetail" type engages with at least one groove of "dovetail" type and do not block the drilling head in the place of conjunction with the holding body. The drilling head has at least one opening from the top of the drilling head to the second mating surface, and at least one fastening facility, extending through at least one opening and fixed to the holding body.
EFFECT: high drilling speed with easier feeding speeds, productivity increase due to using the modern machines possibilities in terms of power characteristics and reduced axial pressure.
24 cl, 12 dwg
