The 21/64 Drill Blank from Field Tool Supply is made from high-speed steel (HS), designed for creating precise holes in various materials. This drill blank is ideal for custom applications where specific hole sizes are required. With a diameter of 21/64 inches, it provides versatility for different machining tasks. The high-speed steel construction ensures durability and longevity, making it suitable for both professional and DIY projects. This drill blank meets industry standards, ensuring reliability and performance in demanding environments.