The DEWALT Plunge Saw Blades with an alternate top bevel for fine cutting in wood. They feature lasercut expansion slots that reduce noise and vibration. With extra large sub micro grain carbide teeth remain sharper for much longer. The corrosion resistant carbide extends cutting life, even in extreme materials. Size: 165 x 20mm Bore. The DEWALT DT1090 Plunge Saw Blade has the following specification: Size: 165 x 20mm Bore. Tooth: 48 Teeth 2.2mm POS +5°. DEWDT1090QZ