Outstanding durability in metal! High-speed steel, ground for long-lasting performance. Do you need durable drill bits for easy drilling without pilot holes? Then the PRO Metal HSS-G twist drill is the right choice. With it, you can drill effectively and place holes exactly where you want them. PRO Metal HSS-G drill bits are a great option for construction workers and installers who need durable metal drills for drilling in alloyed and non-alloyed steel, non-ferrous metals, cast iron, plastics, and wood. They are made from high-quality high-speed steel and are ground for strength, heat resistance, and precision. The cross-ground drill tip allows for precise starting.