The DEWALT® BLACK & GOLD™ metal drill bits feature a black and Gold coating to prevent rust. The tapered web design provides extreme durability to resist breakage. The bits feature a 3-flats shank to reduce spin-out in the chuck. BLACK & GOLD™ metal drill bitst are made of heavy-duty high speed steel for drilling into a variety of materials including plastic, wood, and metal. Each bit features a 135° split point tip design to help reduce walking.