| 摘要 |
<p>A cutting tool (20) capable of cutting or grooving at high accuracy an object independent of the thickness of a disk-like cutting blade used. The cutting tool (20) has the disk-like cutting blade (22) having a through-hole (21) at the center, an annular rigid plate (23) fixedly installed on each face of the cutting blade (22) so as to be coaxial with the cutting blade (22), and an annular ultrasonic vibrator (24) fixedly installed so as to be in contact with the outer face or inner circumferential edge of each rigid plate (23) and to be coaxial with the rigid plates (23) and having a smaller outer diameter than the rigid plates (23).</p> |
