The Milwaukee 48-00-5788 9 in. x 10 TPI The 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. Ice Hardened blades are cryogenically treated for up to 50% longer life. These blades are ideal for making tough, straight cuts. The Milwaukee 48-01-8713 contains 50 blades. Also known as -9 18 TPI High Performance Sawzall Reciprocating Saw Blade 48-00-578-5PK18TPI 9L Torch Blade-Sawzall THE TORCH Demolition Reciprocating Saw Blade-9" 18T SAWZALL BLADE-Reciprocating Saw Blades: Milwaukee Saw Blades 9 in. 18 TPI Double Duty Super Sa-Milwaukee Tools 48-00-5788 Super Sawzall Torch&trade Demolition Profile Bi-M