DEWALT Black Oxide Drill Bit Set, 20-Piece (DW1177) (Black Gold) Product Description The DEWALT Black Gold Metal Drill Bit Sets feature a black and gold coating for preventing rust. The tapered web design provides extreme durability to resist breakage. The DEWALT drill bits sets feature a 3-flats shank to reduce spin-out in the chuck. The 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. From the Manufacturer The DEWALT DW1177 20-piece drill bit set contains bits sized from 1/16-inch up to 1/2-inch. These bits have a black oxide finish for greater wear protection and longevity of the bit. The parabolic flute design also gives these bits greater strength. They have a 135-degree split-point design that reduces slip and walking and allows for easier no-slip starting. The bit set includes a sturdy tough case container to keep bits organized. Tough cases include a sliding soft-grip lock that keeps the case closed securely to prevent lost bits. These bits are ideal for drilling in metal, wood, and plastics. Features 135-degree split point tip of the drill bits for wood, metal or plastic is designed to help reduce walking DEWALT drill bit set is made from High Speed Steel to be used in plastic, wood, and metal Tapered web design for extreme durability and resisting breakage of the drill bits Black and gold coating to help prevent rust and wear 3-Flats shank to reduce spin-out in the chuck* Size markings on the drill bit shank for identifying sizes quickly Black oxide finish for greater wear protection Parabolic flute design for greater bit strength 135-degree split-point design reduces slip and walking Includes tough case container to keep bits organized Sliding soft-grip lock keeps case closed securely USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.