| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting tool that can improve cutting diameter accuracy and circularity accuracy.SOLUTION: A cutting tool 1 according to one embodiment, which is inserted into a hole 105a formed in an object 105 to be cut, and cuts an inner peripheral face 105a1 of the hole 105a, comprises: a rotary driving holder 2; a blade tool 3, provided in the holder 2, which cuts the inner peripheral face 105a1 of the object 105 to be cut; and a guide pad 4, provided in the holder 2, which slidably contacts the inner peripheral face 105a1 of the object 105 to be cut. The guide pad 4 has a first part 4a and a second part 4b whose width dimensions in a rotating direction of the cutting tool 1 are different. The first part 4a is arranged near an insertion direction into the object 105 to be cut in the cutting tool 1 relative to the second part 4b, and is larger in width dimension than the second part 4b.SELECTED DRAWING: Figure 1 |
