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, and a single antirotation stop comprising two surfaces protruding from the side wall 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 two surfaces of the single antirotation stop of the insert pocket at least partially extends into the recess,
• rotation of the cutting insert in the insert pocket in a first direction is inhibited by point contact between one of the two surfaces of the single stop and the recess, and
• rotation of the cutting insert in the insert pocket in a second direction is inhibited by point contact between another of the two surfaces of the single antirotation stop and the recess.

A cutting tool comprising:

• a tool holder including an insert pocket, the insert pocket including a bottom surface and a side wall, and a single antirotation stop comprising two surfaces protruding from the side wall 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 two surfaces of the single antirotation stop of the insert pocket at least partially extends into the recess,
• rotation of the cutting insert in the insert pocket in a first direction is inhibited by contact between a localized area of one of the two surfaces of single antirotation stop and the recess, and
• rotation of the cutting insert in the insert pocket in a second direction is inhibited by contact between a localized area of another of the two surfaces of the single antirotation stop and the recess.