The #58 COBALT JOBBER DRILL from Field Tool Supply is a high-performance drill bit designed for precision drilling in tough materials. Made from cobalt steel, this jobber drill offers exceptional durability and heat resistance, making it ideal for drilling through hard metals and alloys. With a size of #58, it is perfect for creating small, precise holes in various applications. The drill features a standard shank that fits most drill chucks, ensuring compatibility with a wide range of drilling machines. Its design promotes efficient chip removal and reduces friction, resulting in cleaner holes and longer tool life.