Turning insert

A turning insert comprising:

• a top surface;
• an opposite bottom surface, wherein
• a reference plane located parallel to and between the top surface and the bottom surface, wherein a center axis extends perpendicular to the reference plane;
• a side surface connecting the top surface and the bottom surface;
• a nose portion including a convex nose cutting edge, a first cutting edge and a second cutting edge, wherein the nose cutting edge connects the first and second cutting edges, wherein as seen in a top view the first and second cutting edges form a nose angle of 71-85° relative to each other, wherein a bisector extends equidistantly from the first and second cutting edges, wherein the nose portion includes a third convex cutting edge adjacent to the first cutting edge and a fourth cutting edge adjacent to the third convex cutting edge, wherein as seen in the top view the fourth cutting edge forms an angle of 10-30° relative to the bisector, wherein the bisector intersects the nose cutting edge at a nose cutting edge center point, wherein the third convex cutting edge and the fourth cutting edge are connected by a first transition point, wherein the first cutting edge and third convex cutting edge are connected by a second transition point, the top surface including a first protrusion, wherein the first protrusion includes a first chip breaker wall facing the fourth cutting edge, the first chip breaker wall being arranged between an upper border line and a lower border line, wherein a distance from at least a portion of the fourth cutting edge to the reference plane increases at an increasing distance from the nose cutting edge, wherein a second protrusion is arranged between the nose cutting edge and the first protrusion, wherein the second protrusion intersects the bisector, wherein the second protrusion includes a second chip breaker wall, and wherein a distance from the second chip breaker wall to the reference plane is shorter than a distance from the upper border line of the first chip breaker wall to the reference plane.