Abstract: The present invention provides a scissor-action reinforcement cutter comprising a lower jaw and an upper jaw which is of smaller profile than the lower jaw, a first and a second shearing cutter means dismountably secured to each of opposed inner lateral surfaces of the upper and lower jaws in a bent formation in the longitudinal direction of the jaw, and a hydraulic cylinder operatively associated with the jaws, the lower jaw being provided with a through-opening in a forward part thereof to accept a foreard end portion of the upper jaw in such a manner that the first shearing cutter means of the upper and upper jaws intersect each other to grip a work to be cut, the lower jaw being provided with a land series configured generally in the shape of the capital letter L around the through-opening, the shearing cutter means being disposed along the long lateral side of the land series, and a clearance being provided between the short side of the land series which is opposite to the side of the lower jaw on which