The 12 pc. BLACK & GOLD™ impact ready metal drill bit set is rust-resistant, with a strong tapered Core design that helps resist breakage. Made of heavy-duty, high-speed steel for drilling into a variety of materials including plastic, wood, and metal, each bit features a 1/4 in. Hex shank designed to resist axial torque with impact drivers. The 135° split point tip design on 1/8 in. And larger sizes helps reduce walking. The 12 pc. Set comes in a durable ToughCase+ system which is designed to o