Outstanding lifespan in stainless steel! High-speed steel with additional cobalt material for long-lasting performance. Are you looking for drills that can make clean cuts in stainless steel? Drills that work quickly, deliver precise results, and do not wear out quickly? PRO Stainless Steel HSS-Co spiral drills are stable and do not wander, allowing you to drill clean and precise holes, time and time again. PRO Stainless Steel HSS-Co drills are a great choice for construction workers and installers who need durable drills for drilling in stainless steel and other metals. They are made from high-quality cobalt-reinforced high-speed steel (HSS-Co) and are ground to ensure high wear and heat resistance. They feature a centering tip so you can position the holes exactly where they need to be. This allows you to work faster and benefit from the drill's performance for a long time.