Newell Rubbermaid 4935202 Irwin Tools 24-Tooth WeldTec Cordless Circular Framing/Ripping Saw Blade, 6-1/2" Over 25% stronger tooth bond than traditional brazing methods Heat-resistant non-stick coating reduces binding and gumming for cleaner, truer cuts Laser cut plate with expansion control slots reduces warping and increases blade control Suitable for softwoods, hardwoods, composites, and pressure-treated woods The IRWIN Weld Tec Circular Saw Blade, Framing and Ripping, is made stronger to last longer. This ultra-thin kerf blade features patented Weld Tec technology with carbide teeth that are welded not brazed and delivers the fastest cutting speed and increased durability when compared to previous IRWIN blades. Constructed with a heat-resistant, non-stick coating to reduce binding and gumming, these blades have laser-cut expansion slots to reduce warping while increasing blade control for straighter cuts.