The DEWALT DWAFV48SET FLEXVOLT 8pc Reciprocating Saw Blade Set are engineered to maximize runtime. These blades feature TOUGHCOAT finish which helps to reduce heat build up for efficient cuts. They have a variable tooth pattern (4/6 for wood, 14/18 for metal) for fast cuts, with high speed steel teeth for long life and durability. For use in cordless and corded tools. DEWALT FLEXVOLT high efficiency accessories are engineered to maximize runtime. Set contains: 6" and 9" Wood Cutting Blades, 6" and 8" Metal Cutting Blades, with Blade Storage Case.