... strip as a saw blade for cutting wood with a good wear resistance and long lifetime for use GradeDensityT.R.S ... & application recommendedYM614.9215090.0Good wear resistance, used for hard wood, used for processing original wood, aluminum section bar, brass rod ... .YM2514.5215092.2Wear resistance and strength comparatively higher, suitable for processing cast iron, non-ferrous,metal and non-metallid ...