Field Tool Supply's 31/64 3MT Oil Hole Drill is engineered for high-performance drilling in various materials. Made from high-speed steel (HSS), this drill features a 3MT shank for compatibility with a wide range of machines. It is specifically designed for oil hole drilling, facilitating effective lubrication in drilled holes. Measuring 31/64 inches in diameter, this tool is perfect for precision applications in metalworking and manufacturing. Its durable construction meets industry standards, ensuring reliability and efficiency in your drilling tasks.