This adaptor can be attached to Makita circular saws and jigsaws, which allows you to use the circular saws with the Makita SP6000 guide rail system for precise, straight routing cuts.The adaptor is compatible with models DHS630, DHS710, HS7101, HS610, 4350, 4351, DJV180, DJV181, DJV182. Features and Benefits: Guide rail adaptor compatible with DHS630, DHS710, HS7101, HS610, 4350, 4351, DJV180, DJV181, DJV182. Allows more accurate cuts after adapting the model mentioned to guide rails.