This adaptor can be attached to Makita 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 DJV180 DJV181 DJV182 4350 4351FCT 4329 JV0600Features and Benefits:Guide rail adaptor compatible with DJV180 DJV181 DJV182 4350 4351FCT 4329 JV0600Allows more accurate cuts after adapting the model mentioned to guide rails.