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 titanium to deliver faster cuts than the previous generation, featuring more teeth with an increased cutting width and a deeper plunge cut. These oscillating multi-tool blades are designed and made in the USA with global materials.