The Torch, 9" Diamond Grit Sawzall Blade Delivers Up to 30 Times Longer Grit Than Standard Carbide Grit Blades, Exact Diamond Grit Size and Location Allows These Blades to Cut Up to 2 Times Faster Than Standard Carbide Grit Blades, Thicker, Stiffer Blade Body Resists Fracturing and Bending for Maximum Durability, 1" Tall Blade Body Reduces Twisting for Straighter, More Accurate Cuts, Ideal for Cutting Cast Iron, Hard Tile, Masonry and Other Abrasive and Hard Materials.