The DEWALT Black & Gold Hex Shank Metal Drill Bits feature a black and gold finishing to prevent rust. The strong tapered core design provides extreme durability to resist breakage. The bits feature a 1/4" Hex Shank that is designed to resist axial torque with impact drivers and is compatible with most power drills. 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. The 135° split point tip design helps to reduce walking.