The TiN-coated HSS step drill bit is designed for drilling and countersinking operations on metallic materials. Its conical geometry allows for progressive hole enlargement, facilitating the creation of variable diameter holes with a single tool. The titanium nitride coating enhances wear resistance and reduces friction during cutting, contributing to a longer tool life. This tool is suitable for applications requiring precision and reliability in metalworking, ensuring an accurate finish of the holes. The high-speed steel construction provides robustness and stability during professional use.