Use with Milwaukee® Oscillating Multi-Tool. The Milwaukee® universal fit Open-Lok™ titanium enhanced bi-metal oscillating multi-tool blade 1 pk is made from premium high-speed steel. This 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.