1/8 By 2-3/4 Inch Black Oxide Coated Drill Bits 2 Pack (Case Of 5) 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 degrees split point tip design to help reduce walking.