These saws are made of carbon steel. The teeth have a hardness of 62 HRc to 66 HRc. The back part of the saw is hardened up to 38 HRc for contour cutting. It is available in 250 ft packed or welded in different lengths according to the customer’s request. Ability to cut wood, cast iron, copper, zinc, brass, non-ferrous metals, plastic, glass wool, aluminum, and mild steel. , bronze, and lead.