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 1/2" Thick, High Performance Delivers Unmatched 50X Longer Cutting Life, Greater Durability In Cutting Applications & An Oversized Body Height For Straighter Cuts With Less Vibration.