The 9-inch 10 TPI 9110 Reciprocating Blades 5-pack from BLACK & DECKER is engineered for heavy-duty cutting tasks. Featuring a 10 teeth per inch (TPI) design, these blades excel in demolition and construction applications, providing efficient cutting through wood and metal. Made from high-quality steel, they ensure durability and long-lasting performance. Each blade measures 9 inches in length, compatible with most standard reciprocating saws. This pack of five blades is perfect for contractors and serious DIYers, ensuring you have the right tools for extensive projects.