The DEWALT Xtreme Runtime FlexVolt Circular Saw Blades are 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. Ideal for the Dewalt Flexvolt DCS520T2 / DCS520NT Plunge Saw Features and Benefits: Engineered to maximize runtime Submicron grade carbide teeth for long life Patented body slot design for smooth cuts Thin kerf design for smooth, efficient cuts For use with XR FlexVolt range and all compatible corded and cordless circular saws, mitre saws and table sawsOptimized for cordless with up to 2x more cuts per charge This twin pack includes both a 42 tooth and 24 tooth blade and the DWS5025 Plunge Saw guide rail bag. This bag contains a front pocket to keep your blades safe This durable carry bag is for use with 1 m and 1.5 m DeWalt guide rails.