1-1/8' STEP BIT METAL CUTTER: Makes it easy to cut a variety of materials including mild steel, aluminum, brass, copper, wood, fiberglass, plastics and laminates to create clean, precision holes IMPROVED DESIGN: Durable split-point tip offers fast, accurate metal penetration, while the improved double flute design provides superior chip evacuation, cutting speeds, and a long tool life SUPERIOR CUTTING PERFORMANCE: Patented split-step design that optimizes chip loading for ultra-fast, smooth cutting and even more holes per charge to help you get the job done quickly PROGRESSIVE CUTTING EDGES: Provides the power tool accessory with balanced aggression to maximize torque efficiency while minimizing stalling for a superior performance every time 3-FLAT SHANK AND LASER MARKINGS: Powerful three-flat shank is compatible with all 1/2' drill chucks, and the convenient laser markings allow for quick and easy product and size identification