Our Bi-Metal Thin Metal Universal Fit Oscillating Multi-Tool Blades provide up to 15x longer life vs. high carbon steel blades. The TITANIUM CHARGED™ Coating provides increased durability while cutting for maximum wear resistance. These bi-metal blades offer fast plunge cuts and have a black oxide coating to prevent rust. They are also clearly laser etched for clear blade identification. These OMT Blades have a durable, reinforced Universal Fit anchor that is compatible with all major brands of non-Starlock tools. They are made for use in copper, aluminum, nails, PVC, and drywall. Our oscillating multi-tool blades are designed and made in the USA with global materials.