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 82 degree 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. Versatile performance - complete a wide range of countersink applications in metal, wood, and plastic materials with an 82 deg. tip High-speed steel construction - get long bit life on demanding jobs with a durable design Corrosion-resistant - help prevent rust with a corrosion-resistant black and gold coating Smooth drilling - avoid excessive vibration with a 5-flute design Rounded shank - fits handheld and stationary drills