The MILWAUKEE® 2-1/2" Bi-Metal Multi-Material Universal Fit Oscillating Multi-Tool Blades provide up to 15x longer life vs. high carbon steel blades. The TITANIUM CHARGED™ Coating is designed to increase durability while cutting for maximum wear resistance, while the bi-metal construction supports fast plunge and rip cuts across demanding applications. A black oxide coating helps prevent rust, and laser-etched markings provide clear blade identification on the jobsite. The durable, reinforced Universal Fit anchor is compatible with all major brands of non-Starlock tools. These blades are made for use in wood, nails, PVC, copper pipe, and drywall, and are designed and made in the USA with global materials.