Set of panels with a mechanical locking device

Method for dismantling, from a locked position to a dismantled position, a set comprising a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein:

• the first panel comprises a first edge surface and a first panel surface,
• the second panel comprises a second panel surface,
• the first edge surface is facing the second panel surface in a locked position of the first and the second panel,
• the mechanical locking device comprises an panel groove at the second panel surface, a flexible tongue positioned in the panel groove, a rod-shaped element at the first edge surface and an insertion groove at the second panel surface extending from the second panel surface to the panel groove,
• the rod-shaped element is configured to be inserted into the insertion groove and the rod-shaped element comprises a recess,
• the flexible tongue is configured to cooperate with the recess for a locking of the first panel to the second panel in a first direction which is perpendicular to the second panel surface, and
• the panel groove extending at an angle α in the second panel in view of the second panel surface,
• wherein the method comprises:
• inserting a dismantling-rod into the edge groove and move the flexible tongue out of the recess of the rod-shaped element by flexing the flexible tongue inwards in the edge groove, and
• moving the rod-shaped element and the dismantling-rod outwards in the insertion groove and out of the insertion groove to dismantle the first panel from the second panel.