Diablo 6 Piece Bi Metal Reciprocating Set with 2 Free Carbide Reciprocating Blades Set Includes: 9" Nail Embedded Wood Blade, (2) 6" Nail Embedded Wood Blades, 2) Nail Cutting Blades 6 inch metal and 6 inch metal demolition blade, Perma shield coating protects these blades from heat, gumming and corrosion, Tips hooked into the wood cutting blades to bite into the material throughout the cut without slipping. - Dual tooth configuration, Blade teeth are spaced closely together for smoother, faster cuts, Storage sleeve keeps blades safe from the elements when not in use, Variable tooth design, Wood cutting blades feature a Easy plunge tip design for faster and easier plunging, wood cutting blades suitable for cutting steel and metal composite materials.