Floor panels and method for producing floor panels and cutting tools used therein

A floor panel wherein the floor panel has coupling parts on a first pair of opposite sides,

• wherein the coupling parts of a first floor panel arranged as floor panel are arranged to couple to coupling parts of a second floor panel of said floor panel at a first pair of opposite sides, and establish both a lock in a vertical direction perpendicular to a plane of the floor panels and a lock in a horizontal direction perpendicular to the respective sides and in the plane of the floor panels,
• wherein the lock in the vertical direction is achieved using a tongue and groove connection, wherein said groove is delimited by a lower lip and an upper lip,
• wherein in order to achieve the lock in the horizontal direction, the coupling parts are provided with locking parts in a form of a recess in the lower lip and a protrusion cooperating therewith on an underside of the tongue forming at least horizontally active locking surfaces,
• wherein a locking surface is formed on flanks of said recess is situated at least partially in a part of the lower lip extending past the upper lip,
• wherein in a coupled state of the first and second panels at the first pair of opposite sides, a contact zone is formed between the underside of the tongue and the lower lip;
• wherein the floor panel is configured such that in the coupled state of the first and second panels at the first pair of opposite sides, an open space is present, viewed vertically, between the tongue and the lower lip, and viewed horizontally, between the contact zone and the contact between the horizontally active locking surfaces;
• wherein the underside of the tongue in the open space has a first face;
• and a top side of the lower lip in the open space has a second face;
• and
• wherein in coupled state of the first panel with the tongue in the groove of the second panel, at least one face perpendicular to the coupled panels and parallel to the first pair of opposite sides intersects both the first face of the first coupled panel and the second face of the second panel;
• wherein in the open space, the lower edge of the tongue comprises a third face distally from the first face,
• wherein the third face makes a greater angle with the plane of the panel than the first face;
• wherein in the open space, the lower edge of the tongue comprises a fourth face proximally to the first face,
• wherein the fourth face makes a greater angle with the plane of the panel than the first face;
• wherein in the open space, an upper edge of the lower lip comprises a fifth face distally from the second face,
• wherein the fifth face makes a greater angle with the plane of the panel than the second face;
• wherein in the open space, the upper edge of the lower lip comprises a sixth face proximally to the second face,
• wherein the sixth face makes a greater angle with the plane of the panel than the second face.