Make easy rips and crosscuts when framing and finishing with the SKIL 4-1/2 In. 24-Tooth & 40-Tooth Carbide Circular Saw Blade Set. The blades in this circular saw blade set feature induction-hardened alternating top bevel carbide teeth designed to stay sharp and prolong the life of your cutting edge, and a clear, anti-stick coating reduces friction and heat with less bogging down. The coating also prevents rust and oxidation, keeping the blades fresh and ready for use. A thin kerf gets each circular saw blade spinning faster, easier for optimal performance, while expansion slot cutouts reduce vibration and ensure the blades run straight and true. The long-lasting, 24-tooth circular saw blade can be used for rough framing and most general purpose cutting applications while the 40-tooth circular saw blade can be used for clean rips and finishing cuts.