The Diablo Demo Demon DOU175BW3 is a 3-pack of 1-3/4" bi-metal oscillating blades for demolition and remodeling work in nail-embedded wood. The ultra-hardened cutting edge delivers up to 5X longer life than standard bi-metal blades in the same application, and the 3-pack carries spares for the inevitable hidden brad.

• 1-3/4" cutting width and depth for joist notching, baseboard removal, and outlet cut-ins
• Bi-metal construction: HSS teeth electron-beam welded to flexible alloy back to handle nails and screws without snapping
• Ultra-hardened cutting edge for up to 5X longer life vs standard bi-metal in nail-embedded wood
• Curve Contact Edge creates a pilot for precise, clean plunge cuts with less vibration
• Black I.C.E. (Industrial Cutting Edge) coating resists heat buildup and corrosion
• Universal OIS interface fits Bosch, Milwaukee, DeWalt, Makita, Ridgid, Porter-Cable, Ryobi, and most cordless and corded multi-tools (Starlock-only tools excepted)
• 3-pack carries spares for single-day demo and remodel projects

Use Tip: Start the tool before contact, apply light pressure, and rock the blade slightly to clear chips. For plunge starts, tilt the corner of the blade into the work and pivot it flat once the cut opens.

Care Tip: Wire-brush teeth between cuts to clear pitch and nail debris. Retire each blade when the cutting edge turns blue or the curve flattens out -- continuing past that point loads the tool's gearbox.

Note: HSS bi-metal is not rated for masonry, cast iron, or hardened screws. Step up to carbide-grit or diamond-grit blades for those materials.