IEY1609 Features: * 10 times longer than high carbon steel and 2 times longer than high speed steel * Flexible, steel spring backs provide long blade life * Super-hard, high speed steel teeth for a sharp, long-lasting cutting edge * Shatterproof, handles the toughest cutting jobs * Fits all jig saws using 1/4"" universal shank * All-purpose cutting in wood, plastic, and metals * Carded Includes: * 5 piece set includes one Wood Cutting 30062 (2503-9689), one Wood Cutting 30063 (2583-9705), one Metal Cutting 30074 (2583-9721), one Metal Cutting 30075 (2583-9747), and one Metal Cutting 30076 (2583-9762)