The Torch recip saw blades are ideal for demolition, plumbing, remodeling and general metal cutting. Cuts pipe, channels, tubing, angle iron up to 4in., plus nail-embedded wood and steel. U.S.A. Blade Application Demolition, Wood and Metal Cutting Blade Size (in.) 12 TPI (Teeth per Inch) 18 Blade Material Bi-Metal Tang Style Universal Tang Size (in.) 1/2 Reversible Yes Blades (qty.) 5 Blade Type Straight Back * Matrix II high-speed steel teeth with 8% cobalt * TORCH blades are 1in. tall for straight, fast cutting, and 0.042in. thick for longer life with the ability to flex in tight cutting situations * Tough bi-metal design for fast-cutting, long-lasting blade life * 1/2in. universal blade tang fits all Sawzalls * Blade reversible in clamp