| 摘要 |
A cutting tool has at least one cutting insert seated therein. The cutting insert has a longitudinal axis, an upper surface, a lower surface and a peripheral surface that extends between the upper surface and the lower surface. At least a portion of an intersection between the upper surface and the peripheral surface constitutes a cutting edge. The lower surface has at least one set of base abutment surfaces, each set including at a least one major base abutment surface and at least one minor base abutment surface. The major and minor base abutment surfaces of the first set lie on a first base abutment plane while the major and minor base abutment surfaces of the second set lie on a second base abutment plane. The first and second base abutment planes forming a first non-zero angle therebetween. |
