| 摘要 |
The invention relates to a cutting tool, in particular for the turning out of drillings, comprising a clamping piece (10) for fixing the tool in a clamp holder. Said clamping piece (10) comprises two clamping surfaces (30), which converge on each other in the direction of the one side (32) of the clamping piece (10) and in the direction of the other side (34) of the clamping piece (10) run into a roof-type surface (36) and, on the side of the clamping piece (10) facing away from the clamp holder, connect to a rod-like neck piece (12), which tapers in cross-section relative to the clamping piece (10) the free end of which is connected to a cutting piece (14) as one piece, provided with a cutting edge (16) on the external end thereof to which a face (18) of the cutting piece (14) connects in the direction of the neck piece (12). A high degree of reinforcement for the neck piece and the cutting piece arranged on the free end thereof with the blade or the blade edge thereof is achieved, whereby the neck piece (12) has two reinforcement pieces running along the same, transverse to the plane of the cutting edge (16), which are embodied in the manner of reinforcing ribs (20, 22) which convergently taper in the direction of the cutting piece (14), which are diametrically opposed in relation to the neck piece (12) and have the greatest width thereof at the point of transition into the clamping piece (10).
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