These DEWALT FlexVolt XR Circular Saw Blades have been developed as a high performance blade that delivers fast and accurate cuts in heavy-duty applications. Perfectly suited to the cutting of large and thick timbers and various other site materials. Its extreme runtime design provides the blade with twice the working life span of its market competitors. Suits 30mm mitre saw spindles. This DEWALT Xtreme Runtime FlexVolt Circular Saw Blade has the following specification: Diameter: 216mm.Bore: 30mm.Tooth: 60.Part Number: DT99570.