DOVAMAN set includes 5 universal drill bits that work efficiently with metal, plastic, and wood. They can create a total of 50 holes in various sizes. The drill bits are made of HSS steel, ensuring durability, wear resistance, and enhanced strength. A titanium coating is applied to reduce heat and friction. A key feature of the bits is the X-shaped 118-degree tip, allowing for smooth and precise drilling. They have hexagonal shanks for easy attachment to drills or screwdrivers. The set also includes a center punch. All components are stored in a sturdy and convenient case. This set is ideal for handling most drilling tasks.