The 1-5/16 Oil Hole Drill from Field Tool Supply is constructed from stainless steel (SS) and high-speed steel (HS) for exceptional durability and performance. This drill is specifically designed for oil hole drilling, enhancing lubrication in drilled holes. With a diameter of 1-5/16 inches, it is suitable for various applications in metalworking and manufacturing. The drill features a robust design that meets industry standards, ensuring reliability and efficiency in your drilling tasks. Its stainless steel construction provides resistance to corrosion, making it ideal for demanding environments.