The Starrett BU224S-5 metal cutting jigsaw blades are engineered for precision and durability when working with various metal materials. Designed with a Unified Shank, these blades are compatible with a wide range of jigsaw machines. The blades are manufactured using a Unique solid state diffusion bonding process, which provides 170% more weld contact area compared to standard bi-metal options. This construction, paired with multiple cutting edges and a split chip design, results in robust, long-lasting teeth that typically offer a 25% increase in service life over competing products. Each blade features a 24 TPI scroll tooth pattern with a wavy set for efficient material removal. The tooth-bearing section measures 50mm in length, 4.5mm in width, and 1mm in thickness, with a total length including the shank approximately 25mm longer.