Master Mechanic, 8" Coarse Grit-Edge, Reciprocating Saw Blade, 1/2" 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, Designed To Cut Fiberglass, Ceramic Tile, Laminates & Composites, Clamshell Package.