Quick release interface for a wide range of compatibility: the saw blades have a universal interface which is easy to install and remove. This tool blade kit fits Fein Multimaster, Ryobi, Milwaukee, Hitachi, Black & Decker, Chicago, Craftsman, DeWalt, Bosch, Dremel, Makita, Rockwell, Rigged. With C-adapter it can fit Dremel MM40/MM45 & Fein Supercut.