A shear machine, often referred to as a shear, is a piece of equipment that utilizes a sharp blade to cut through materials, primarily metals. The principle behind shear cutting is relatively straightforward two blades are used — one fixed and one moving. When the moving blade slides downwards, it creates a shearing action that effectively slices the material between the blades. This method allows for clean, straight cuts and minimizes the deformation of the metal, which is particularly crucial when working with iron.