Diablo's Composite Decking Blades are the perfect blades when cutting composite decking materials. These new blades deliver maximum performance and highest quality of finish; making it a 'must-have' tool for both professionals and DIYers planning composite decking projects. Diablo's new saw blade series has a modified triple chip tooth grind design, Perma-SHIELD® non-stick coating, and specific TiCo™ Hi-Density carbide to deliver more efficient and cleaner cuts with no swirl marks, less "gumming" of blade teeth and longer cutting life .