Diablos TrexBlade is the only recommended composite decking by Trex Company when cutting composite decking materials. These blades deliver maximum performance and highest quality of finish; making it a must-have tool for both professionals and DIYers planning composite decking projects. Diablos 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.