| 摘要 |
A drilling and/or chiseling tool, in particular for machining materials such as concrete, rock, masonry, and the like, having a hard metal cutting element ( 1 ) contained in the machining end of the tool head, a radially outer, second working region (II) of the hard metal cutting element ( 1 ) being set back in relation to a central, first working region (I) of the hard metal cutting element ( 1 ) and the two working regions (I, II) transitioning into each other via a third working region (III). The third working region (III) is at least partially comprised of at least one partial circumference surface ( 5, 6 ) of at least one conical surface. |
