The COMB DRL&CTSK HS 4 X 3 from KEO is a high-speed steel combination drill and countersink tool designed for precision drilling and countersinking in one operation. This tool features a 4-inch length and a 3-inch diameter, making it ideal for various applications in metalworking and woodworking. Constructed from durable high-speed steel, it ensures longevity and resistance to wear. The tool is compatible with standard drill chucks and is suitable for use in both manual and CNC machines. Its design adheres to industry standards, ensuring reliable performance and accuracy.