Our TORCH with NITRUS CARBIDE blade is the fastest cutting and longest life blade in cast iron and thick metals. Our NITRUS CARBIDE technology dissipates heat better and delivers 5X the life of existing carbide teeth reciprocating saw blades, greatly improving user productivity when cutting through cast iron. Our blade features a new 8TPI design, allowing for the fastest, smoothest cuts in all thick metals. With larger gullets than competitive carbide blades, the TORCH with NITRUS CARBIDE will provide easier chip ejection and resist gumming up the teeth when cutting the thickest metals