| 摘要 |
A cutting tool, in particular for the turning out of drillings, has a clamping piece ( 10 ) for fixing the tool in a clamp holder. The clamping piece ( 10 ) includes two clamping surfaces ( 30 ), which converge on each other in the direction of the one side ( 32 ) of the clamping piece ( 10 ). In the direction of the other side ( 34 ) of the clamping piece ( 10 ), the clamping surfaces extend into a roof-type surface ( 36 ). On the side of the clamping piece ( 10 ) facing away from the clamp holder, the clamping surfaces connect to a rod-like neck piece ( 12 ), which tapers in cross-section relative to the clamping piece ( 10 ). The free end of the clamping piece is connected to a cutting piece ( 14 ) as one piece, and is 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 its free end with its blade or the blade edge is achieved. The neck piece ( 12 ) has two reinforcement pieces running along it, transverse to the plane of the cutting edge ( 16 ). The reinforcement pieces are reinforcing ribs ( 20, 22 ) which convergently taper in the direction of the cutting piece ( 14 ), are diametrically opposed in relation to the neck piece ( 12 ) and have their greatest width at the point of transition into the clamping piece ( 10 ). |
