BlueSpot 210mm Circular Mitre Saw Blade 30mm Bore 25 20 16mm Rings 24 40 48T 3pc Blue Spot Tools Circular Saw Blades are manufactured from carbon steel for increased durability. Ideal for many materials including hardwood, softwood, chipboard other composite materials Manufactured from carbon steel for increased durability Ideal for many materials including hardwood, softwood, chipboard other composite materials Carbide tipped teeth 15? positive rake Diameter: 210mm (8 1/4") / Bore: 30mm / Plate Thickness: 1.4mm Complete with 25mm, 20mm and 16mm reducing rings.