| 摘要 |
<p>Provided is a clamp assistant member that has a simple shape, that is inexpensive to manufacture, that is applicable also to small-diameter tools, and that provides excellent workability at the time of replacing a cutting insert. Also provided is a cutting tool that includes said clamp assistant member. To achieve the above, the clamp assistant member has an engagement section for engagement with a clamping screw, has a ring shape with a portion thereof completely cut out, and deforms elastically and expands in outer diameter when a force is applied from the head of the clamping screw to the upper section of the inner circumferential surface. A cutting insert is attached to a tool body by means of the clamp assistant member.</p> |
