Abstract: A multi-functional pliers has a body with a first fixed arm with a gripping portion. A second arm is connected with a first end to the body and has a gripping portion remote from the first end. The body has a pivot pin and the first end of the second arm is pivotably connected to the pivot pin. A blade is moveably mounted in the body. A toggle mechanism for transforming a rotary movement of the second arm into a translatory movement of the blade is provided. A returning part is connected to the body and a die member is connected thereto. The blade has a tool connected to one end thereof facing the die member. The first and second arms in a rest position of the pliers are positioned adjacent to one another such that the first and second arms can be gripped with one hand by a user, wherein by squeezing the fingers of the hand the second arm is moved toward the first arm. The toggle mechanism includes a control rod. The blade has an articulation pin to which the control rod is pivotably connected.

Abstract: The plug grip comprises a first and a second arms pivotally mounted together, with the first arm leading to a bearing shoe member and the second arm causing a raise of a screw of an expansion plug. The second arm comprises two successive bearing points, a first bearing point providing a great lever arm ratio for causing a start of bending of the expansion plug and a second bearing point providing a smaller lever arms ratio for increasing a distortion stroke of the expansion plug.