Milwaukee 12" 7 TPI Carbide Teeth Torch Sawzall Blades (Pack of 5) (48-00-5503) have been engineered to deliver extreme life and unmatched versatility in thick & extreme metal cutting applications. This blade delivers up to 50X life over standard blades. The Torch Sawzall Blade with carbide teeth tackles a wide variety of metal materials ranging from black pipe and angle iron to cast iron, stainless steel, & high strength alloys. Having 25% more carbide per tooth than other carbide blades and a optimized tooth design deliver extreme life in metal cutting applications.