The MILWAUKEE Universal Fit OPEN-LOK 1-3/8 in. Titanium Enhanced Carbide Teeth Blade 1 Pack for Oscillating Multi-Tools is designed for extreme metal cutting in screws, bolts, metal pipe, nails, and more. The 1-3/8 in. 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 with global materials.