Abstract: A folding tool including a U-shaped handle and a tool element adapted to lie within the handle in its closed position, a tang at one end of the tool element fitted pivotally around a pivot axis between the two prongs of the handle, said pivot axis extending parallel to the plane defined by the tool element, wherein a locking leg extending parallel to the prongs is resiliently suspended on the inner side of the first prong such that a free end of the leg can be pressed towards the first prong against the action of a spring force. The locking leg is provided with locking means adapted to engage with an engagement part of the tang for locking the tool in its 180.degree. opened position, the locking state being disengaged by pushing the free end of the locking leg towards the first prong.