The CT-MS HMR DR(36) 9/16 X18 is a high-performance drill bit designed for heavy-duty applications. With a 9/16 inch diameter and 18 threads per inch, this drill bit is perfect for creating precise holes in various materials, including metal and wood. Constructed from high-speed steel, it offers exceptional strength and longevity. The 36-inch length provides extended reach for deep drilling tasks. This drill bit meets ANSI standards, ensuring reliability and performance in professional settings. Ideal for contractors and serious DIYers alike.