To easily mount and demount a chip and to keep the high mounting rigidity of the chip.
First and second chip restriction faces 16, 17 formed on a chip mounting seat 15 oppositely to each other are formed into recessed V-shapes along the axial direction O. Upper and lower faces 23, 24 of a chip body 21 are formed into projecting V-shapes along the axial direction O. Two projecting faces 26 26 axially separated from each other are formed on the lower face 24 of the chip body 21, and kept into contact with the second chip restriction face 17. One projecting face 25 positioned between the two projecting faces 26, 26 is formed on the upper face 23 of the chip body 21, and the first chip restriction face 16 is kept into contact with the projecting face 25.
| JPH0994705 | CUTTING TOOL |
| WO/2001/028722 | DOUBLE NEGATIVE CUTTING INSERT FOR TOOLS FOR CHIP REMOVING MACHINING |
FURUKI TOSHIMITSU
Tadashi Takahashi
Masakazu Aoyama
Akihiko Eguchi
Hideyuki Sugiura
Yasuhiko Murayama
Noriko Yanai