Dresser

2:

• The dresser according to claim 1, wherein a distance in the insertion direction to the base end portion of the cutting edge component from at least one of the portions in each of which the area of the cross section of the portion of the cutting edge component inserted in the mount component along the line normal to the insertion direction is increased from the front end portion side toward the base end portion side is less than ½ of the length L1, where L1 represents the length of the portion of the cutting edge component inserted in the mount component in the insertion direction.

3:

• The dresser according to claim 1, wherein a difference M1-M2 between the maximum value M1 and a minimum value M2 is more than or equal to 0.01 mm, where M1 represents the maximum value of the diameter of the circle having the area equal to the area of the cross section along the line normal to the insertion direction in the portion of the cutting edge component inserted in the mount component, and M2 represents a minimum value of the diameter of the circle having the area equal.

4:

• The dresser according to claim 1, wherein the cutting edge component includes diamond or cubic boron nitride.

5:

• The dresser according to claim 1, wherein
• the cutting edge component is composed of a single-crystal diamond, and
• a surface of the cutting edge component to come into contact with a workpiece corresponds to a (100) plane, a (110) plane or a (211) plane.

6:

• The dresser according to claim 1, wherein the area of the cross section of the portion of the cutting edge component inserted in the mount component along the line normal to the insertion direction has a maximum value at the base end portion of the portion of the cutting edge component inserted in the mount component.

7:

• The dresser according to claim 6, wherein the area of the cross section is monotonously increased as a distance is decreased between the cross section and the base end portion of the portion of the cutting edge component inserted in the mount component along the insertion direction.

8:

• The dresser according to claim 1, wherein the area of the cross section of the portion of the cutting edge component inserted in the mount component along the line normal to the insertion direction is once decreased and then increased as a distance is decreased between the cross section and the base end portion of the portion of the cutting edge component inserted in the mount component along the insertion direction.

9:

• The dresser according to claim 1, wherein the dresser is a point type single-point dresser, a blade type multi-point dresser, or a rotary type dresser.