Walk Behind Floor sawing: Engine:Gasoline,Diesel,Electric Blade Size:12",14",16",18", 20" 300mm,350mm,400mm,450mm,500mm Concrete Saw Cutting ... : with 12" blade( 300mm blade)SC14: with 14" blade( 350mm blade)SC16: with 16" blade( 400mm blade)SC18 : with 18" blade (450mm blade)SC20: with 20" blade( 500mm blade) Concrete Saw ...