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 spinout 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-degree split point tip design to help reduce walking. | DEWALT 5/8" Reduced Shank Black Oxide Drill Bit (1/2" Shank) DW1622