the tool is accurately and positively positioned relative to the blade tooth it becomes possible to use a power tool to produce the necessary swaging impact not only does the swaging operation proceed rapidly but it has also been found probably due to the high impact levels which can be produced by a power tool that the original shape of the saw tooth tip will be substantially restored by the swaging operation itself so that the need for a subsequent filing step in connection with each swaging procedure can be eliminated in practice it is found that the teeth of a saw blade can be properly maintained if the filing step is performed only after every two or three swaging procedures in comparison with prior art procedures it has been found that the swaging tool according to the invention permits a complete swaging procedure to be performed on a 56 inch diameter inserted tooth saw blade having approximately 55 teeth in 7 to 10 minutes by personnel having only a small amount of experience surface 62 is easily held against the associated outer surface of the saw blade in view of the very small amplitude of movement of the tool during the swaging operation if for special purposes it were.