The #31 COBALT JOBBER DRILL from Field Tool Supply is a high-performance drill bit designed for precision drilling in tough materials. With a size of #31, this cobalt jobber drill offers superior hardness and heat resistance, making it ideal for drilling into stainless steel and other hard metals. Its design features a standard length, providing versatility for various applications. This drill bit meets industry standards for quality and performance, ensuring reliable results in both industrial and DIY projects. Its sharp cutting edges enhance drilling efficiency and accuracy.