FIELD: cutting tools for drilling machines.
SUBSTANCE: drilling tool such as drill includes stem; cutting portion; at least one inner duct for lubricating material extending outside at least through one outlet opening in working zone of drill; at least one feed reservoir arranged coaxially relative to drilling tool. Said reservoir is communicated at least with one inner duct and has inlet hole for lubricating material. Reservoir is arranged inside stem of drill along mean lengthwise axis of drill. Inlet hole for lubricating material is formed on end side of feed reservoir along mean lengthwise axis of drill. In variant of invention feed reservoir is in the form of separately mounted vessel detachably joined with end side of stem of drilling tool. Diameter of said vessel is no more than that of tool stem.
EFFECT: improved design.
16 cl, 6 dwg
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RU2462333C2 |
