ITEM NAME:40T Circular Saw Blade 4 Inch Saw Blade Cutting Disc For Wood Saw Cutting Discs Features: 1. Triple Chip Grind allows for smooth cut on non ferrous and plastic items. 2. Ultra sharp, hard car.Teeth: 40T. Type: Circular Saw Blade. 1pc Circular Saw Blade. Bore: 20mm. Thickness: 1.6mm.