Professional quality blades with 7mm Tungsten Carbide Tipped teeth to ensure a long working life and accuracy of cut. Each blade has laser cut expansion slots to improve their performance by reducing heat build up. A positive rake blade (POS) is advisable when the workpiece is taken to the saw blade. A negative rake blade (NEG) is advisable when the blade is taken to the workpiece. Diameter: 210mm. Bore: 35mm. Teeth: 32T. Comes with 30, 25 and 16mm bushes.