The 21/64 X 6 Drill Blank HS from Field Tool Supply is engineered from high-speed steel (HS) for exceptional performance in drilling applications. Measuring 21/64 inches in diameter and 6 inches in length, this drill blank is perfect for creating precise holes in a variety of materials. Its high-speed steel construction provides excellent wear resistance and heat tolerance, ensuring a long service life. This drill blank is an essential tool for machinists and hobbyists, meeting rigorous industry standards for quality and durability.