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 degree split point tip design to help reduce walking.
135 degree split point drills on contact and prevents walking
Parabolic flute design improves chip ejection in metal and wood drilling applications
Black Oxide coated for greater wear resistance
Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute