TORCH™ with NITRUS™ Carbide SAWZALL® reciprocating saw blade for cast iron and other thick metals is built for construction work, demolition projects, and the workshop. Designed for the toughest cast iron removals, this 6" 8 TPI saw blade supports fast cutting performance when cutting cast iron and slicing thick metals during metal demolition, renovation, and plumbing replacement tasks.NITRUS™ carbide SAWZALL® blades deliver the fastest cutting, longest life products with breakthrough Carbide Technology. Engineered to dissipate heat better than any other demolition blade, it is built for demanding cutting tasks and heavy-duty cutting. This demolition blade delivers 5x life versus carbide teeth blades in cast iron, helping maintain performance on tough removals.For cut quality, these SAWZALL® metal blades deliver the fastest, smoothest cuts in cast iron and reliable cuts in hard cast iron. Optimized performance in hard cast iron, stainless steel, black pipe, rebar, & angle iron makes it a practical reciprocating saw accessory for professional metal cutting. The 1" tall blade body adds strength, and large tooth gullets support easy material ejection during cutting. Metal SAWZALL® blades available in 1, 3 and 5pks, and are made in the USA. As a metal cutting blade, it can support pipe cutting needs for plumbing repair, helping plumbers and a plumber handle pipe cutting tasks during plumbing replacement and renovation work; Made in USA.