48-00-8789 is Milwaukee's 12 Inches Super Sawzall TORCH Blade. Its designed for the toughest Fire and Rescue work, demolition, plumbing, remodeling or general metal cutting applications. Torch Blade will cut pipe, conduit, angle iron, steel and other hard materials. These Super Sawzall Blades are 1 inch tall for straight, fast cutting, and 0.042 inch thick for longer life with the ability to flex in tight cutting situations. Well Milwaukee Blades have a unique heat treating process that extends the life of the blades. Last but not least, 12 Inch TORCH blades are designed to resist breaking, further extending blade life. And this 18 teeth per inch blade should be used on material 1/8 inch through 3/16 inch thick.