Abstract: A gear milling cutter, including a basic body being rotatable around a center axis and having a rotationally symmetrical basic shape, which includes two opposite flank sides that extend radially inward from a periphery of the basic body, and a plurality of replaceable milling inserts, which are mounted on the flank sides and individually comprise a cutting edge that is formed between a chip surface and a clearance surface and extends between a pair of opposite and radially separated ends of the milling insert. Some of the plurality of milling inserts are root inserts, which are placed in tangentially spaced-apart positions along the periphery of the basic body. Others of the plurality of milling inserts are flank inserts, which are tangentially spaced-apart and placed in at least one ring formation located radially inside the root inserts.