| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool holder having a simple configuration, enabling the automatic replacement of tools, having the high suction efficiency of cutting powder, and preventing internal accumulation.SOLUTION: The tool holder 4 has a mounting hole 19b opened to a tip face 19a and allowing a cutting tool 12 to be attached to and a clamp hole 14d communicating with the mounting hole 19b and opened to a proximal end face, and is attached to a main shaft 3 of a machine tool. The tool holder 4 has a suction hole a3 formed to be opened to the tip face 19a and to communicate with the clamp hole 14d. |
