Durability meets professional-grade cutting speed with this pack-leading 12 in. 6 TPI LUMBERWOLF .05 in. Thick Bi-Metal Reciprocating Saw Blade. The blade tip was designed for easy， fast， and clean plunge cutting. Cut through rugged lumber with ease thanks to a solid blade profile engineered for swift sawing even through nail-embedded wood. Get the most out of your reciprocating saw using the blade’s high-strength spring steel backing which assists in reducing breakage even after long-term use.