Irwin Marathon 12 in. Carbide Miter and Table Saw Blade, 40 Teeth is engineered for woodworkers who demand precise, finish-ready cuts across a range of projects. With a 12-inch diameter and a 1-inch arbor, this blade is ready to upgrade your miter saw or table saw with cleaner edges and less waste.
Why this blade stands out
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Carbide-tipped teeth deliver longer edge life and consistent performance through hardwoods, softwoods, and plywood, so you spend less time sharpening and more time building.
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ATB grind (Alternate Top Bevel) minimizes tear-out on crosscuts and leaves a smoother face that’s ready for finish coats right off the saw.
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40 teeth strike a balanced balance between fast, efficient cutting and a fine finish, making it ideal for cabinetry, trim, shelving, and furniture components.
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0.095" kerf provides a narrow cut that reduces material waste and minimizes load on the saw, while still maintaining rigidity for accurate cuts.
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20° hook angle promotes efficient chip evacuation and steady feed, helping you maintain consistent quality across long runs.
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Maximum speed up to 5900 RPM ensures you can push through cuts with steady performance without bogging down or overheating.
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Compatibility with 12" miter saws and table saws that accept a 1" arbor, making it a versatile upgrade for many workshop setups.
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Single-carded packaging keeps the blade protected and ready to install, with straightforward, tool-friendly handling.
Ideal use cases
- Finish-grade crosscuts on trim, doors, and face frames where a clean, smooth edge is essential.
- Precise rips and crosscuts in softwoods and hardwoods for cabinetry, shelving, and furniture components.
- Projects that require efficient material use thanks to a narrow kerf, reducing waste on large boards or panels.
What makes it different from generic blades
This Irwin Marathon blade pairs a robust carbide formulation with an optimized ATB grind and a purpose-built 40-tooth count to deliver consistent, high-quality cuts across diverse woods. The combination minimizes tear-out on finish surfaces, preserves material integrity, and maintains cut accuracy over the life of the blade. It’s designed for everyday shop tasks where you want reliable performance without swapping blades for every material type.
Tips for best results
- Ensure the saw is properly tuned with a true alignment and a clean arbor to maximize the blade’s efficiency and safety.
- Run within the recommended RPM range and feed smoothly to preserve the edge and achieve uniform cuts.
- Use a push stick or zero-clearance insert for small parts to maintain control and minimize tear-out on end grain.
- Pair with quality blade guards and take breaks to inspect the edge wear; carbide tips last longer when cuts remain clean and free of pitch buildup.
Whether you’re building a new set of cabinets, installing trim, or crafting precise shelves, the Irwin Marathon 12 in. carbide miter and table saw blade with 40 teeth offers dependable performance, cleaner finishes, and the versatility you need in a single, durable blade.
