Discover the Irwin Marathon 10 In. 40-Tooth General Purpose Circular Saw Blade. Engineered for versatile cutting, this blade features a slim kerf that delivers faster, cleaner, and more precise results. Its C3 carbide-tipped teeth are precision honed for a long-lasting edge, while the distinctive shoulder behind each tooth adds support for smoother, more accurate cuts. Integrated heat vents help minimize warping under heavy use, keeping performance steady through demanding jobs.

Maximize efficiency and cleanups across a range of materials: The combination of a thin kerf and durable carbide teeth reduces waste and boosts cut quality, letting you finish projects faster with professional edges.

• 40-Tooth general purpose design: Delivers smooth, controlled cuts in wood, plywood, and composites, making it ideal for framing, and finishing tasks.
• Carbide-tipped C3 teeth: Precision honed for extended edge life and consistently clean results.
• Thin kerf for faster cuts: Narrow kerf removes less material, increasing productivity with less waste.
• Shoulder-support geometry: Extra backing behind each tooth reduces chatter for straighter, more precise passes.
• Heat vents for warp resistance: Engineered vents dissipate heat to keep the blade flat and true during heavy-duty cuts.

Why choose this blade?: The Irwin Marathon 10 In. blade blends rugged durability with precise performance for daily carpentry tasks. Its durable carbide teeth stay sharp longer, while the thin kerf and optimized geometry speed up work and minimize waste. Built to endure demanding jobs, it helps you achieve consistent, professional edges with less effort.