The DeWalt Black and 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 and Gold metal drill bits are made of High-Speed Steel for drilling into various materials including plastic, wood, and metal. Each bit features a 135-degree split point tip design to help reduce walking.