A finishing profile for a floor covering, including at least a flange-shaped portion, which extends on opposite sides of an attachment portion situated on the underside, wherein the flange-shaped portion is formed in one piece from synthetics and is provided for being subdivided at the location of the attachment portion. The invention further also relates to a cutting tool for cutting up such finishing profile for a floor covering, wherein this cutting tool includes a body and includes at least one knife, wherein the position of the knife is adjustable.