Product Description Thin kerf design provides quick, smooth cuts in all woods with less load on the saw. Ideal for all cutting applications in softwood, hardwood, chip board, or plywood. Professional quality thin kerf carbide saw blades produce a smooth finish with minimal material waste. Amazon.com The DEWALT DW9158 combo pack comes with two (2) 6-1/2-inch saw blades. The 18-tooth and 24-tooth blades are designed for cutting aluminum extrusions, copper, brass, and other non-ferrous metals and for general purpose wood cutting, including framing lumber, plywood, and various wood composites. Other features include anti-stick rims for reduced gum-up and friction as well as an ultra-thin kerf for precision and fast cutting.