Panels comprising a mechanical locking device and an assembled product comprising the panels

A set of panels comprising a panel with a first main plane and an adjacent panel with a second main plane, wherein the panel and the adjacent panel comprise an angleable locking device for locking a first edge of the panel to a second edge of the adjacent panel, wherein the first main plane is essentially perpendicular to the second main plane, wherein:

• the angleable locking device comprises an edge groove at the first edge and a tongue groove at the second edge, the edge groove comprises a tongue arranged in an insertion groove at a first side of the edge groove, said tongue is configured to cooperate with the tongue groove for locking together the first and the second edges in a first direction which is perpendicular to the first main plane,
• the angleable locking device further comprises contact surfaces between the edge groove and the second edge at the first side and at a second side, respectively, of the edge groove for locking together the first and the second edges in a second direction which is parallel to the first main plane, and
• the angleable locking device is configured to be unlocked by an angling motion of the panel relative the adjacent panel, such that an angle between the first and the second main plane increases, wherein the angleable locking device is configured such that at least part of the tongue moves out of the tongue groove by the angling motion, wherein the angleable locking device comprises a first space between the first edge and the second edge at a second side of an opening of the edge groove in a locked position of the panel and the adjacent panel,
• wherein, as seen in a cross-section along a plane essentially perpendicular to the first and second main planes:
• an innermost surface of the edge groove contacts an outermost surface of the adjacent panel;
• the first space is bounded by a lateral surface of the second edge, the lateral surface of the second edge being coplanar with one of the contact surfaces;
• and
• the first space is bounded by only a single intersection of the panel and the adjacent panel.