Material: The bits are made from high-speed steel, often with a titanium coating to reduce friction, ensure durability, and extend cutting life.
Functionality: They are designed to cut clean, accurate holes in various materials, including steel, aluminum, copper, plastic, and wood.
Design: The step design allows for drilling various diameters, and features like self-centering split tips mean pre-punching might not be necessary. They also automatically deburr holes while drilling for a smooth finish.
Center Punch: The included automatic center punch delivers a spring-loaded strike to mark the starting point for drilling, preventing the drill bit from wandering.
Sizes: The specific bits in the image are marked for ranges141XXXXXX