The MILWAUKEE® Universal Fit OPEN-LOK™ 2-1/2" Titanium Enhanced Bi-Metal Oscillating Multi-Tool Blade 10 Pack is made from premium high-speed steel. This 2-1/2" bi-metal blade is ideal for cuts in wood, nails, PVC, and drywall. The titanium enhanced bi-metal multi-tool blades deliver faster cuts vs 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.