Saw blade

The invention discloses a saw blade and relates to a machining tool. The saw blade comprises a body, an installation hole and multiple fractures. The installation hole is formed in the center positionof the body and is used for assembling the saw blade to the machining tool. The multiple fractures are arranged at the end portion of the body at intervals, each fracture is arranged in the radial direction of the body, and therefore the end portion of the saw blade is cut into multiple tool bits. Each tool bit is configured into a hole hollowing and emptying tool bit which can reduce contact area and increase pressure intensity, and each tool bit is edged. By means of the saw blade, the above structure is adopted, the area of a cutting arc can be reduced all the time, correspondingly, pressure intensity is increased, the pressure of carving a diamond into a machined object is increased, and therefore sharpness is improved. Thus, by means of the saw blade, the shape is changed so that sharpness of the saw blade c