Complete countersink applications with this DEWALT® high-speed steel countersink drill bits. Engineered for use in many common materials, these durable, corrosion-resistant Black and Gold bits feature an 82º tip making them ideal when working with metal, wood, and plastic. A 5-flute design allows for smooth drilling while helping to provide long bit life and minimize friction. Available as a 5-piece set or in the following individual sizes: 1/4 in., 3/8 in., 1/2 in., 5/8 in., and 3/4 in.