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 bits 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.