A cutting insert for a drilling tool, the cutting insert comprising an insert body having a central longitudinal axis extending along a longitudinal direction of the insert body and an imaginary centre plane comprising the central longitudinal axis, the insert body having a pointed shape substantially in the longitudinal direction, and being generally defined by a top surface, a bottom surface, and a circumferential surface extending between the top surface and the bottom surface, wherein the insert body at the top surface comprises a first rake face and the bottom surface comprises a second rake face, wherein the insert body at the circumferential surface comprises a first radial side and a second radial side extending in the longitudinal direction on opposite sides of the insert body, and a first axial side and a second axial side extending across the longitudinal direction on opposite sides of the insert body, wherein the insert body comprises a first cutting edge extending along a rim portion at an intersection between the first rake face and the first axial side, and a second cutting edge extending along a rim portion at an intersection between the second rake face and the first axial side, wherein the first cutting edge comprises a first edge portion and a second edge portion extending at an obtuse angle (η) to each other, and the second cutting edge comprises a third edge portion and a fourth edge portion extending at an obtuse angle to each other, the first, second, third, and fourth edge portions (24a - 24d) forming said pointed shape, wherein the first axial side comprises a first relief face and a second relief face, the first relief face extending along the first rake face on one side of the imaginary centre plane and the second relief face extending along the second rake face on an opposite side of the imaginary centre plane, wherein the first relief face forms an obtuse angle (ε) with the centre plane, such that the insert body is longer in the longitudinal direction at the first cutting edge than adjacent to the centre plane, and wherein the second relief face forms an obtuse angle (ε) with the centre plane, such that the insert body is longer in the longitudinal direction at the second cutting edge than adjacent to the centre plane, and characterised in that the obtuse angle (η) between the first and second edge portions is within a range of 160 +/- 5 degrees, preferably approximately 160 degrees. wherein the insert body at the top surface comprises a first rake face and the bottom surface comprises a second rake face, wherein the insert body at the circumferential surface comprises a first radial side and a second radial side extending in the longitudinal direction on opposite sides of the insert body, and a first axial side and a second axial side extending across the longitudinal direction on opposite sides of the insert body, wherein the insert body comprises a first cutting edge extending along a rim portion at an intersection between the first rake face and the first axial side, and a second cutting edge extending along a rim portion at an intersection between the second rake face and the first axial side, wherein the first cutting edge comprises a first edge portion and a second edge portion extending at an obtuse angle (η) to each other, and the second cutting edge comprises a third edge portion and a fourth edge portion extending at an obtuse angle to each other, the first, second, third, and fourth edge portions (24a - 24d) forming said pointed shape, wherein the first axial side comprises a first relief face and a second relief face, the first relief face extending along the first rake face on one side of the imaginary centre plane and the second relief face extending along the second rake face on an opposite side of the imaginary centre plane, wherein the first relief face forms an obtuse angle (ε) with the centre plane, such that the insert body is longer in the longitudinal direction at the first cutting edge than adjacent to the centre plane, and wherein the second relief face forms an obtuse angle (ε) with the centre plane, such that the insert body is longer in the longitudinal direction at the second cutting edge than adjacent to the centre plane, and characterised in that the obtuse angle (η) between the first and second edge portions is within a range of 160 +/- 5 degrees, preferably approximately 160 degrees.