The DEWALT black and 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 in hex shank that is designed to resist axial torque with impact drivers and is compatible with most power drills. Black and gold metal drill bits are made of heavy-duty HSS for drilling into a variety of materials including plastic, wood and metal. The 135 deg split point tip design helps to reduce walking.