This is a Irwin/Benchmark 10" 40 Teeth Carbide Tipped Saw Cutting Blade Model Number 1350-629. This Blade is Brand New in Original Packaging. Features and Benefits: *Precision Ground Tungsten Carbide Blade. *5/8" Arbor *40 Tooth Alternate Top Bevel Design is Excellent When Cutting With & Across Grain. *Last Up To 50 Times Longer Than Conventional Blades.