The Universal Fit OPEN-LOK 1-3/8" Titanium Enhanced Carbide Teeth Blades for Oscillating Multi-Tools are designed for extreme metal cutting in screws, bolts, metal pipe, nails, and more. The MILWAUKEE Titanium Enhanced Carbide Teeth Metal Blade lasts up to 50X longer than standard bi-metal blades and can be used in a wide range of materials for the longest blade life. This Milwaukee carbide teeth blade is designed and made in the USA with global materials.