The Milwaukee 48-00-3788 9 in. x 18 TPI Torch Metal-Cutting Blades with the Double Duty Upgrade feature a tooth form optimized for the longest life and maximum durability. Tough Neck is engineered to protect against tang breakage and delivers the strongest SAWZALL blade tang on the market. Grid Iron features a stamped honeycomb pattern throughout the body of the blade that greatly increases the rigidity of the blade, making it the stiffest metal cutting SAWZALL blade on the market. These blades are ideal for making tough, straight cuts. Also includes one Thick Metal cutting SAWZALL Blade. The MILWAUKEE TORCH with Carbide Teeth for Thick Metal SAWZALL Blade cuts longer, cuts more, and cuts faster. This carbide SAWZALL blade is designed with Carbide Teeth for longer life vs. bi-metal blades in black iron, rebar, stainless steel, cast iron, and more. The 8 TPI design is ideal for fast, smooth cuts in thick metals. Size: medium.