7-1/4″ x 44 tooth x 5/8″ arbor, composite decking blade, Diablo trexblade is the only recommended composite decking by trex company when cutting composite decking materials, deliver maximum performance & highest quality of finish, making it a must have tool for both professionals & do it yourselfers, a modified triple chip tooth grind design, perma-shield non-stick coating, & specific tico high density carbide to deliver more efficient & cleaner cuts with no swirl marks, less gumming of blade teeth & longer cutting life.