The COMB DRL&CTSK HS 1.60X 4.00PL from Field Tool Supply is a high-performance combination drill and countersink tool. With a diameter of 1.60 inches and a length of 4.00 inches, this tool is designed for efficient drilling and countersinking in various materials. Constructed from high-speed steel, it ensures durability and precision, providing clean holes and smooth finishes. The design is compatible with standard drilling equipment, making it a versatile choice for both professionals and DIY enthusiasts. This tool is perfect for projects that require both drilling and countersinking in a single operation.