Set of floor panels, which is suitable for forming a floor covering in herringbone pattern, wherein these floor panels (1A-1B) are oblong rectangular and thus comprise a pair of long edges and a pair of short edges; wherein the long as well as the short edges are provided with mechanical coupling means, which allow coupling the floor panels to each other; wherein the first long edge is provided with a first male coupling part and the second long edge is provided with a first female coupling part; wherein the first short edge is provided with a second male coupling part and the second short edge is provided with a second female coupling part; wherein the first male coupling part on the first long edge can be inserted into the first female coupling part on the second long edge by means of a turning movement; wherein the first male coupling part on the first long edge can also be inserted into the second female coupling part on the second short edge by means of a turning movement; wherein the second male coupling part on the first short edge can be inserted into the first female coupling part on the second long edge in one and the same turning movement which is used to insert the first male coupling part on the first long edge into the first or second female coupling part (7 or 9) on the second long, respectively second short edge (3 or 5); wherein the second male coupling part on the first short edge and the first female coupling part on the second long edge, in a coupled condition thereof, effect a locking in horizontal direction as well as a locking in vertical direction; wherein the second male coupling part on the first short edge comprises a first locking element, which, in a coupled condition of this second male coupling part and the first female coupling part on the second long edge, cooperates with a first locking element of this first female coupling part in order to effect said locking in vertical direction; wherein the first locking element of the second male coupling part is realized as a separate insert; wherein the insert is provided in a recess in the second male coupling part on the first short edge; and wherein this recess preferably is provided in a distal side or edge of the respective male coupling part; wherein the insert comprises a locking part which, when performing the coupling movement, arrives in a locking position by performing a lateral movement; and wherein the insert or at least a portion thereof is elastically deformable and/or displaceable in order to allow said lateral movement; wherein the coupling parts on the pair of long edges are made in the form of a tongue and a groove, respectively; wherein the groove is bordered by an upper and a lower lip; and wherein the tongue and groove are provided with locking elements, which, in a coupled condition of the tongue and groove, counteract the moving apart thereof in horizontal direction; wherein the upper side of the tongue, in a coupled condition of the tongue and groove, cooperates with the lower side of the upper lip; characterized in that the locking part, when performing the coupling movement, performs a lateral turning or rotational movement; wherein there, where the insert cooperates with the respective locking element, a tangent line is defined, which runs upward in the direction away from the respective female locking part; and wherein this tangent line forms an angle with the horizontal which preferably is smaller than or equal to 45 degrees; and wherein there, where the upper side of the tongue and the lower side of the upper lip cooperate with each other, a tangent line is defined which is oriented horizontally.