Diablo's carbide teeth jig saw blades deliver extreme durability and superior cutting life in composite decking materials. High-performance carbide teeth provide an unmatched up to 50X longer cutting life versus standard jig saw blades. The optimized blade design and Perma-SHIELD® non-stick coating reduces heat for fast and effortless melt-free cuts. T-shank design fits all combo and most U-shank cordless and corded jig saws.