Introducing the Irwin Marathon 6-1/2 in. Carbide Circular Saw Blade with 40 teeth—designed to deliver precise, clean crosscuts and dependable performance when paired with cordless saws. If you’re working on cabinetry, trim, shelving, or precise finish work, this blade helps you achieve professional edges with less effort.
Engineered for crosscut efficiency, the blade features an ATB (Alternate Top Bevel) grind with a 23° hook angle. This combination delivers smoother entry, reduced chipping on hardwoods and plywood, and noticeably cleaner faces on trimmed or finished edges. The 40-tooth count strikes a balance between fast feed rates and a refined cut, making it ideal for finish-oriented projects where edge quality matters.
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Diameter and arbor: 6-1/2" blade with a 5/8" arbor fits a wide range of cordless circular saws.
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Material and durability: Carbide teeth provide extended life and wear resistance, even when cutting hardwoods, softwoods, or composite boards.
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Kerf and speed: Thin kerf of 0.063" reduces resistance for smoother cuts and faster cutting cycles, while a maximum speed rating of 8300 RPM aligns with high-speed cordless tools.
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Tooth configuration: 40 teeth deliver clean finishes on crosscuts and trim work without sacrificing feed rate.
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Packaging and compatibility: Carded packaging with a single blade per package for protection and easy stocking; designed to work with cordless saws in the Irwin Marathon family.
Who benefits most: DIY enthusiasts, professional carpenters, cabinet makers, and anyone upgrading their cordless tool kit who needs reliable, repeatable crosscuts and smooth edge quality in wood, plywood, and composite panels.
Use scenarios include finishing trim on doors and frames, cutting cabinet faces and shelves, bevel or crosscuts on plywood for shelving, and quick, accurate cuts on hardwood boards where edge quality is critical.
Why choose this blade over generic options? The Irwin Marathon carbide blade is purpose-built for longevity and consistent results in real job-site conditions. The ATB grind with a 23° hook angle reduces tear-out, the 0.063" kerf minimizes waste and vibration, and the carbide tips stand up to repeated cuts with minimal dulling. This means fewer blade changes, cleaner edges, and a more efficient workflow on every project.
Upgrade your cordless saw kit with the Irwin Marathon 6-1/2 in. carbide blade and experience sharper cuts, longer blade life, and confidence you can rely on for every cut.
