The #31 COBALT PARABOLIC STUB drill bit from Field Tool Supply is designed for high-performance drilling in tough materials. Made from cobalt steel, this drill bit offers superior heat resistance and durability, making it ideal for heavy-duty applications. The parabolic flute design enhances chip removal and reduces friction, allowing for faster drilling speeds. With a #31 size, it is perfect for precision work in metal and other hard materials. This drill bit meets industry standards for quality, ensuring reliable performance in every project.