Blade Width: 1-1/4"Starlock Interface For Professional Performance , Also Works With OIS Compatible Tools Including Bosch, Fein, Milwaukee, Makita, Rigid And MoreTwo-In-One Carbide Grit Design For Both Grinding And Rasping Of GroutCurved Edge For Better Control, Especially When Starting First CutColor Coded Interface And Laser Etched Blade To Quickly Identify The Right Blade