Our Universal Fit OPEN-LOK� Titanium Enhanced Bi-Metal Multi-Material Oscillating Multi-Tool Blades are made from premium high-speed steel. These bi-metal blades are ideal for cuts in wood, nails, PVC, and drywall. The MILWAUKEE� bi-metal multi-tool blades are enhanced with a titanium coating to deliver longer life and faster cuts than the previous generation. These oscillating multi-tool blades are designed and made in the USA with global materials. Available in 1-3/8" and 2-1/2" widths in 1, 3, or 10 packs and 3/8�, 1-1/4�, and 3-1/2� in 1 pack.