The 1-3/8 5MT COBALT TS DRILL from Field Tool Supply is a high-performance drill bit designed for precision drilling in tough materials. With a size of 1-3/8 inches and a 5MT shank, this cobalt drill bit offers exceptional durability and heat resistance. Ideal for drilling into stainless steel and other hard metals, it provides reliable performance in demanding applications. The cobalt construction ensures a longer lifespan and consistent cutting efficiency, making it perfect for professionals in the manufacturing and metalworking industries.