| 摘要 |
A cutting insert includes a body formed of sintered powder, with a center ho le extending through the body for receiving a fastening screw. The center hole includes a cylindrical portion. The body includes two side surfaces extendin g downwardly from respective main cutting edges of the insert. A recess is formed in each side surface and extends to the bottom of the body. Each rece ss has a length longer than the diameter of the center hole. Preferably, the length of the recess is 120% of the diameter of the center hole. |
