... :6"8"10"12"14"; 2.Material:45#steel,50#steel,65#steel, high-carbon steel Size:4",6",8",10",12",14"16 ... ",18"Each size has Flat-steel file, Flat-pointed steel file, Triangular files, Half-round files, Round files ... taper files, Extra slim taper files, Double extra slim files,, Chain saw file.