Master Mechanic, 6, Coarse Grit Edge, Reciprocating Saw Blade, 12 Shank, Scroll, Constructed Of Heat Resistant Steel With Tungsten Carbide Particles, Eliminates Premature Dulling Versus Conventional Blades, Cut On The Push Pull Stroke For A Smooth Clean Finish, For Cutting Cast Iron, Stainless Steel, Fiberglass, Plaster, Marble, Slate Ceramic Tile, Clamshell Package