The DEWALT Corded Extreme Framing Circular Saw Blades have a thin kerf (cutting width) to ensure that less push force is required by the user and that they cut straighter with reduced binding. The durable teeth stay sharp for a long time with reduced breakage. Can be used for ripping and cross-cutting natural timbers. Cutting composite wood based sheet materials e.g. plywood, MDF and chipboard. It is NOT recommended for timbers that may contain nails.The DEWALT DT10301QZ Circular Saw Blade has the following specifications: Blade diameter: 165mm.Bore size: 20mm.Tooth count: 40.