With the Dewalt DT70728 19-piece Black and Gold metal drill bit set, you drill quickly and accurately into metal, wood, and plastic. The specialized tip prevents walking on hard surfaces, while the reinforced core delivers superior strength against breakage during demanding tasks. Thanks to the 3-flat shank design, the bits will not spin loose in the drill chuck. Covering sizes from 1 mm to 10 mm, this set provides the exact diameter you need for any job. The durable Black and Gold coating reduces friction, resists corrosion, and extends bit life, keeping everything securely organized in the robust, stackable ToughCase.