Milwaukee Universal Fit OPEN-LOK 3-Piece Multi-Material Oscillating Multi-Tool Blade Variety Pack contains blades ideal for cutting a variety of soft metals, wood, nails, PVC, drywall, and more. The included Titanium Enhanced Carbide Teeth Blade with a patent-pending aggressive tooth design lasts up to 50X longer in extreme materials compared to standard bi-metal blades. The Aggressive Carbide Teeth deliver faster cuts in wood without compromising life in other extreme materials. The Titanium Enhanced Bi-Metal Blade uses premium high-speed steel and lasts up to 15X longer than standard high carbon steel blades. The bi-metal blade is ideal for smooth cuts in wood & nails, PVC, and drywall. Includes 1-3/8 In. titanium enhanced bi-metal multi-material blade, 2-1/2 In. titanium enhanced bi-metal multi-material blade, 1-3/8 In. titanium enhanced carbide teeth multi-material blade.