A milling cutter comprising a front end part and a back end part, the front end part comprising a disc-shaped cutter body having a front side and a rear side and configured to rotate in a rotary direction around a central axis, a number of insert seats (4a, 4b) arranged at an outer periphery of the disc-shaped cutter body, and a primary holding member extending around and along the central axis from the rear side of the disc-shaped cutter body and away from the disc-shaped cutter body, wherein the back end part comprises a secondary holding member engaging the primary holding member when the front end part and the back end part are mounted to each other to form the milling cutter, wherein the disc-shaped cutter body comprises a central cylindrical aperture extending coaxially with the central axis, wherein the central cylindrical aperture comprises an inner cylindrical surface, wherein the secondary holding member comprises an outer cylindrical surface provided on a front portion of the secondary holding member of the back end part, and wherein the inner cylindrical surface is abutting the outer cylindrical surface in an abutting region axially located at least between the front side and the rear side in order to center the front end part and the back end part to each other when the front end part and the back end part are mounted to each other to form the milling cutter, wherein liquid channels extend outwardly in the disc-shaped cutter body to a respective liquid outlet through the outer periphery of the disc-shaped cutter body, wherein the liquid channels are located between the front side and the rear side of the disc-shaped cutter body, characterized in that the liquid channels extend outwardly from the central cylindrical aperture, wherein the inner cylindrical surface and the outer cylindrical surface are configured to form an annular channel extending around the front portion of the secondary holding member, and wherein the liquid channels extend outwardly from the annular channel. the front end part comprising a disc-shaped cutter body having a front side and a rear side and configured to rotate in a rotary direction around a central axis, a number of insert seats (4a, 4b) arranged at an outer periphery of the disc-shaped cutter body, and a primary holding member extending around and along the central axis from the rear side of the disc-shaped cutter body and away from the disc-shaped cutter body, wherein the back end part comprises a secondary holding member engaging the primary holding member when the front end part and the back end part are mounted to each other to form the milling cutter, a disc-shaped cutter body having a front side and a rear side and configured to rotate in a rotary direction around a central axis, a number of insert seats (4a, 4b) arranged at an outer periphery of the disc-shaped cutter body, and a primary holding member extending around and along the central axis from the rear side of the disc-shaped cutter body and away from the disc-shaped cutter body, wherein the back end part comprises a secondary holding member engaging the primary holding member when the front end part and the back end part are mounted to each other to form the milling cutter, wherein the disc-shaped cutter body comprises a central cylindrical aperture extending coaxially with the central axis, wherein the central cylindrical aperture comprises an inner cylindrical surface, wherein the secondary holding member comprises an outer cylindrical surface provided on a front portion of the secondary holding member of the back end part, and wherein the inner cylindrical surface is abutting the outer cylindrical surface in an abutting region axially located at least between the front side and the rear side in order to center the front end part and the back end part to each other when the front end part and the back end part are mounted to each other to form the milling cutter, wherein liquid channels extend outwardly in the disc-shaped cutter body to a respective liquid outlet through the outer periphery of the disc-shaped cutter body, wherein the liquid channels are located between the front side and the rear side of the disc-shaped cutter body, characterized in that the liquid channels extend outwardly from the central cylindrical aperture, wherein the inner cylindrical surface and the outer cylindrical surface are configured to form an annular channel extending around the front portion of the secondary holding member, and wherein the liquid channels extend outwardly from the annular channel.