- When the drilling gets tough, get some DEWALT Cobalt Drill Bits - These high-performance twist-drill bits are specifically engineered for drilling through hard metals and steel, including stainless steel - Made of industrial-strength cobalt, these bits feature a 135 degree split point for enhanced hole drilling, including quick starts and clean, burr-free holes - Maximum speed and life in stainless steel and other hard metals - Pilot point tip design starts on contact and eliminates bit walking - Industrial strength cobalt for optimum life and durability in metal - Ideal for drilling in stainless steel or other hard drill alloys - Patented tapered web design adds durability in heavy-duty applications