Milwaukee Tool has announced an upgrade of bi-metal blades to its line of Wrecker demolition multi-material blades. The line features a new extended one inch blade profile and a 7/11 TPI design that the company says can deliver greater material versatility. Engineered with 25 percent more high speed steel, the new tooth design incorporates a tooth-protecting feature to increase the durability through nails, staples, and thin gauge metals. The Wrecker demolition multi-material blade is available in six, nine, and 12 inches.