- New and improved design
- Every other tooth is thinner for faster cuts
- New heat vent/expansion slot design reduces vibration for longer life and straighter cuts
- Construction grade carbide teeth for longer life
- Reinforced shoulder for added durability
- Fully hardened plate runs longer
![Irwin Marathon Portable Corded Circular Saw Blades, 7 1/4", 24 Teeth, Anti-Friction, Carded #IR14130 (5/Pkg) Irwin Marathon Portable Corded Circular Saw Blades, 7 1/4", 24 Teeth, Anti-Friction, Carded #IR14130 (5/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/260193/365059/585-14130__35391.1595454367.jpg?c=2)