| 摘要 |
Provided is a boring tool, which is able to limit wear of the cutting blades by adapting to the form of the bore in a workpiece. The boring tool is provided with: a tool body (2), which is mounted on the main shaft of a rotary machine tool; and multiple cartridges (3), which are installed on the tip surface (7) of the tool body (2) and have a cutting blade (5) and the positions of which can be adjusted in the radial direction. The tool body (2) is provided with a liquid passage (24) for transporting a cutting fluid in the direction of the rotational axis thereof. The cutting fluid discharge holes are configured from a first discharge hole (25), which is provided between the multiple cartridges (3) on the tip surface (7), and second discharge holes (26), which are provided on the outer circumference of the tool body (2) and face toward the tool edges of the cutting blades (5). |
