The invention relates to a cutting tool comprising a metal plate (20) including a blade (22) that forms a cutting jaw with an anvil (4), the metal plate (20) being connected in an articulated manner to an anvil part (2) at a first pivot point (8) and connected operationally to a first elongated element (12) for opening and closing the cutting jaw in response to the relative turning movement of the first elongated element (12) and the second elongated element (14) about the second and the third pivot points (8,10) respectively.