| 摘要 |
PURPOSE: To provide a rotating shank-type tool which is easy in production and excellent in strength. CONSTITUTION: A rotating shank-type tool 11 comprises a mold cutting head 13 which is connected to a shank 12 and has a chip groove 15 and a groove run-out region 16 and a sleeve 19 which covers a mouth 23. The end area of the sleeve 19 closes a part of the mold cutting head 13, and the mouth 23 is installed on the shank apart from the mold cutting head 13. |
