Drills for metals are specialized cutting tools designed to create holes in various types of metal, including steel, aluminum, and cast iron. These drills are typically made from high-speed steel (HSS), cobalt, or carbide, materials known for their hardness and heat resistance. They come in various types, such as twist drills, which are the most common, step drills for making holes of different diameters, and center drills for starting holes precisely. Metal drills are essential in machining, metal fabrication, and maintenance work.
