Saw ruwa kalma ce ta gama gari don kayan aikin yankan madauwari da aka yi amfani da ita don yanke zanen gado na kayan ƙwaƙƙwaran.Za a iya raba igiyoyi masu tsini zuwa: lu'u lu'u lu'u-lu'u don yankan dutse;Babban gudun hacksaw ruwa don yankan kayan ƙarfe (ba tare da ciminti mai yankan carbide ba);Carbide saw ruwa ga yankan m itace, furniture, itace na tushen panel, aluminum gami, aluminum profile, radiator, filastik, filastik karfe, da dai sauransu.