Lenox Bi-metal Jig Saw Blades - Ideal for Woodworking and Metal Cutting. PRECISION CUTTING - Super sharp to cut fast without deflection. SMOOTH FINISH - Ground to precision sharpness for straight cuts and a smooth finish. IDEAL FOR WOODWORKING - Designed for optimal performance in wood cutting, including hardwoods. SHATTER RESISTANT - Bi-metal technology flexes and resists breaking and extends blade life. Applications for this blade: Fast, Rough Cutting in Wood and Composition Material: 3/8" - 3-1/2" (10-89mm) Thick.