Irwin Multi Material Circular Saw Blade with construction grade tungsten carbide tips which retain their edge for longer and can be resharpened. Fully hardened plate with expansion slots help to dissipate heat and prevent warping. With Triple Chip Grind teeth (TCG) for an excellent cutting finish and a corrosion resistant coating for longer quality performance. This IRWIN Multi Material Circular Saw Blade has the following specifications: Blade Diameter: 160mm. Bore: 20mm. Teeth: 48. Kerf Thickness: 2.4mm. Tooth Config: TCG.