Diablo, 5 Piece, Carbide, Reciprocating Blade Set, Consists Of 3 Demo Demon Blades For Nail Embedded Wood 2 Steel Demon Blades For Metal Cutting Including High Strength Alloys, Cast Iron Stainless Steel, Combination Carbide Reciprocating Blade Set Allows Pros To Blaze Through Nail Embedded Wood With Amazing Ease To Facilitate Fast Teardowns Of Walls Framing Materials, Slice Through Metal So You Can Quickly Dismantle A Variety Of Pipes, Bars Beams Up To 12 Thick, High Performance Delivers Unmatched 50X Longer Cutting Life, Greater Durability In Cutting Applications An Oversized Body Height For Straighter Cuts With Less Vibration