- 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° split point for enhanced hole drilling, including quick starts and clean, burr-free holes - 135 Degree split point drills on contact and prevents walking - Industrial grade cobalt steel for added durability - Ideal for drilling in stainless steel, abrasive metal and other hard to drill alloys - Patented tapered web design adds durability in heavy-duty applications