Antirotation tool holder and cutting insert

A cutting tool comprising:

• a tool holder including an insert pocket, the insert pocket including a bottom surface and a side wall comprising a pocket lower wall and an upper wall, wherein the tool holder includes only a single integral antirotation stop that extends into the insert pocket and intersects the bottom surface;
• and
• a round-shaped cutting insert disposed in the insert pocket, wherein the cutting insert includes a continuous cutting edge and a recess,
• wherein the single antirotation stop comprises at least two substantially planar surfaces and a top surface formed by a chamfer having a circular cross-section that at least partially extend into the recess, and wherein rotation of the cutting insert in the insert pocket in a first direction is inhibited by point contact within the recess between the single antirotation stop and the cutting insert, and wherein rotation of the cutting insert in the insert pocket in a second direction is inhibited by point contact within the recess between the single antirotation stop and the cutting insert.

A cutting tool comprising:

• a tool holder including an insert pocket, wherein the insert pocket comprises a side wall including only a single integral antirotation stop comprising at least three substantially planar surfaces that are substantially perpendicular to a bottom surface of the insert pocket and a top surface formed by a chamfer with a circular cross-section;
• and
• a cutting insert disposed in the insert pocket, wherein the cutting insert is a round-shaped cutting insert including a continuous cutting edge and a recess,
• wherein each of the three substantially planar surfaces and the top surface of the single antirotation element at least partially extend into the recess of the cutting insert to inhibit rotation of the cutting insert in the insert pocket in either direction by localized contact between one of the three surfaces of the single antirotation stop and the cutting insert.

A cutting tool comprising:

• a tool holder including an insert pocket, the insert pocket including a bottom surface and a side wall, wherein the side wall includes only a single antirotation stop comprising at least three substantially planar surfaces that are substantially perpendicular to the bottom surface of the insert pocket, the single antirotation stop extending into the insert pocket and intersecting the bottom surface;
• and
• a cutting insert disposed in the insert pocket, wherein the cutting insert is a round-shaped cutting insert including a continuous cutting edge and a recess,
• wherein each of the three surfaces of the single antirotation stop of the insert pocket at least partially extend into the recess, and wherein rotation of the cutting insert in the insert pocket in a first direction is inhibited by contact within the recess between a localized area of one of the three surfaces of the single antirotation stop and the cutting insert, and wherein rotation of the cutting insert in the insert pocket in a second direction is inhibited by contact within the recess between a localized area of another one of three surfaces of the single antirotation stop and the cutting insert.