The Milwaukee Universal Fit OPEN-LOK 21-Piece Oscillating Multi-Tool Blade Variety Set offers users an assortment of blades for multiple applications. The Titanium Enhanced Bi-Metal Blade uses premium high-speed steel and lasts up to 15X longer than standard high carbon steel blades. This oscillating multi-tool blade set includes a bi-metal blade ideal for soft metals and 2 for smooth cuts in wood and nails, PVC and drywall. The Japanese Tooth blade features PRO-CURVE for fast, clean cuts and greater control in hardwood, clean wood, PVC and drywall. The oscillating wood blades have aggressive, precision ground teeth for fast cuts in wood, drywall and PVC. The 3-1/2 in. round segmented wood blade is great for users making longer straight cuts that don't require a deep cut depth. This Milwaukee multi-tool blade set is designed and [delete] with global materials.