Nail-Embedded Wood and Metal Cutting Bi-Metal Reciprocating Saw Blade Set (6-Piece)Add this Nail Embedded Wood and Metal Cutting Bi Metal Reciprocating Saw Blade Set to your toolkit for faster cuts. Each blade includes Perma Shield coating to protect the blades from heat, gumming and corrosion. With the Demo Demon and Steel Demon blades, you get less vibration than a typical blade. It's compatible with all corded and cordless reciprocating saws. Perma Shield coating protects the blades from heat, gumming and corrosion 1 in.