| 摘要 |
PURPOSE:To improve the accuracy of the cutting work, by performing the cutting work while pressing a work through a work pressing member provided nearer to the inner diameter side than a cutting edge or holding the work through the cutter itself. CONSTITUTION:When a cutter body 2 will rotate to cut a work W by means of a cutting edge 3, the cutting work is performed while pressing the vicinity of a cutting edge at the cutting work section by a work pressing member 5 forced to the work W through a spring 7 or holding the work W by the cutter itself 2. Consequently the work W can be held reliably to prevent the vibration. |
