A turning insert for longitudinal turning of metal work pieces, comprising; a top surface, a bottom surface and a side surface (4;4') connecting the top and bottom surfaces (2, 3), wherein a midplane extends midway between and parallel to the top and bottom surfaces (2, 3), intersections of the top surface and the side surface comprise a first or trailing or minor cutting edge (6;6'), a second or leading or major cutting edge (7;7') connected by a nose cutting edge (5;5') at an acute angled cutting corner, the nose cutting edge (5;5') being defined by a radius, wherein the nose cutting edge (5;5') slopes towards the midplane from the first or trailing or minor cutting edge (6;6') in direction towards the second or leading or major cutting edge (7;7'), wherein the top surface comprises a chip forming space, wherein the chip forming space borders on the first or trailing or minor cutting edge, the second or leading or major cutting edge, and the nose cutting edge (6, 7, 5; 6', 7', 5'), wherein the chip forming space comprises a rake surface in the form of a depression, wherein the rake surface comprises a first rake surface adjacent to the first or trailing or minor cutting edge (6; 6'), a second rake surface adjacent to the second or leading or major cutting edge (7; 7') and a third rake surface adjacent to the nose cutting edge (5;5'), wherein the chip forming space further comprises a first upstanding wall facing the first or trailing or minor cutting edge, wherein the nose cutting edge (5;5') extends from a first transition point to a second transition point, wherein the first or trailing or minor cutting edge (6;6') is connected to the nose cutting edge (5;5') at the first transition point, wherein the second or leading or major cutting edge (7;7') is connected to the nose cutting edge (5;5') at the second transition point, wherein a bisector extends between the first cutting edge and the second cutting edge or the trailing cutting edge and the leading cutting edge or the minor cutting edge and the major cutting edge (6,7;6',7'), wherein the bisector in a top view intersects a midpoint of the nose cutting edge (5;5'), wherein the first cutting edge and the second cutting edge or the trailing cutting edge and the leading cutting edge or the minor cutting edge and the major cutting edge (6,7;6',7') in a top view form a nose angle (μ) of from 35 to less than 90°, and wherein a distance from the midplane to the first transition point is greater than a distance from the midplane to the second transition point, characterised in that, the chip forming space further comprises a second upstanding wall facing the second or leading or major cutting edge (7; 7') and a third upstanding wall facing the nose cutting edge (5, 5'), wherein the third upstanding wall is located between and connecting the first and second upstanding walls (14A, 14B). a top surface, a bottom surface and a side surface (4;4') connecting the top and bottom surfaces (2, 3), wherein a midplane extends midway between and parallel to the top and bottom surfaces (2, 3), intersections of the top surface and the side surface comprise a first or trailing or minor cutting edge (6;6'), a second or leading or major cutting edge (7;7') connected by a nose cutting edge (5;5') at an acute angled cutting corner, the nose cutting edge (5;5') being defined by a radius, wherein the nose cutting edge (5;5') slopes towards the midplane from the first or trailing or minor cutting edge (6;6') in direction towards the second or leading or major cutting edge (7;7'), wherein the top surface comprises a chip forming space, wherein the chip forming space borders on the first or trailing or minor cutting edge, the second or leading or major cutting edge, and the nose cutting edge (6, 7, 5; 6', 7', 5'), wherein the chip forming space comprises a rake surface in the form of a depression, wherein the rake surface comprises a first rake surface adjacent to the first or trailing or minor cutting edge (6; 6'), a second rake surface adjacent to the second or leading or major cutting edge (7; 7') and a third rake surface adjacent to the nose cutting edge (5;5'), wherein the chip forming space further comprises a first upstanding wall facing the first or trailing or minor cutting edge, wherein the nose cutting edge (5;5') extends from a first transition point to a second transition point, wherein the first or trailing or minor cutting edge (6;6') is connected to the nose cutting edge (5;5') at the first transition point, wherein the second or leading or major cutting edge (7;7') is connected to the nose cutting edge (5;5') at the second transition point, wherein a bisector extends between the first cutting edge and the second cutting edge or the trailing cutting edge and the leading cutting edge or the minor cutting edge and the major cutting edge (6,7;6',7'), wherein the bisector in a top view intersects a midpoint of the nose cutting edge (5;5'), wherein the first cutting edge and the second cutting edge or the trailing cutting edge and the leading cutting edge or the minor cutting edge and the major cutting edge (6,7;6',7') in a top view form a nose angle (μ) of from 35 to less than 90°, and wherein a distance from the midplane to the first transition point is greater than a distance from the midplane to the second transition point, characterised in that, the chip forming space further comprises a second upstanding wall facing the second or leading or major cutting edge (7; 7') and a third upstanding wall facing the nose cutting edge (5, 5'), wherein the third upstanding wall is located between and connecting the first and second upstanding walls (14A, 14B).