The TorchT metal-cutting blades with the Double Duty UpgradeT feature a tooth form optimized for the longest life and maximum durability. Tough NeckT is engineered to protect against tang breakage and delivers the strongest SAWZALLr blade tang on the market. Grid IronT 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 SAWZALLr 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.