A mould and a method for manufacturing a wind turbine blade shell part are described. The mould is provided with a moulding surface that defines the outer shape of the wind turbine shell part, wherein the mould has longitudinal direction and comprises a root end mould part at a longitudinal end thereof, and wherein the mould is provided with a lowering mechanism (85), which is adapted to carry and lower a root end insert onto the moulding surface of the mould.