Tungsten carbide mechanically clamped insert refers to a mechanical method of positioning, clamping blade. Mechanically clamped insert can be used for processing cylindrical clip, face, inner hole, and the advantage of using mechanically clamped insert is to avoid the defects caused by welding. The insert holders can be used multiple times, and the geometry design is flexible. Centralized sharpening is good for improving insert quality, convenient management, reducing costs and so on.