Diablo's Demo Demon Universal Fit Bi-Metal Oscillating Blades feature application-specific designs that deliver maximum durability and longer life in nail-embedded wood applications. These high-performance blades feature an ultra-hardened cutting edge that delivers up to 5X longer blade life than standard bi-metal blades. A curved contact edge creates a pilot for precise, clean plunge cuts with less vibration and chatter. Black I.C.E (Industrial Cooling Element) keeps the teeth cool and buildup free for fast, clean cuts. The blade's universal fit, adapter-free design easily attaches most tools, with the exception of Starlock tools.