Our Universal Fit OPEN-LOK™ Titanium Enhanced Carbide Teeth EXTREME Metal Blades for Oscillating Multi-Tools are designed for use in the most Extreme material cutting applications. For use in screws, bolts, metal pipe, nails and other cutting applications. The Extreme Metal Carbide Teeth Blade lasts up to 50X longer than standard bi-metal blades and can be used in a wide range of materials. These Milwaukee Multi-Tool blades are designed and made in the USA with global materials. This blade is available in a 35mm cutting width in a 1 or 2 pack.