| 摘要 |
An object of the present invention is to configure a cutting-off processing tool that includes a cutting edge angled at an end cutting edge angle and causes evacuation of chips to be controlled so that the chips are evacuated in the tool axis direction, thereby reducing concerns about damage to a processed surface by the chips. The cutting-off processing tool includes a cutting edge 2 angled at the end cutting edge angle. In the cutting-off processing tool, an upper surface 3 has a shape laterally asymmetric about a center in a width direction. In the cutting-off processing tool, when ¸b is a rake angle of a rake face on a first corner side positioned on a foremost end of the tool, and ¸c is a rake angle of the rake face on a second corner side, ¸b > ¸c is satisfied. |
