W. L. Fuller 11/64 In. Taper Drill Type C Countersink is expertly designed for countersinking and counterboring screw heads in woods, plastics, and non-ferrous materials. Crafted from durable carbon steel and heat-treated for extended tool life, this Type C countersink reliable performance across a variety of applications. It is compatible with taper point, brad point, and regular point drills, and is securely held in place by two hex socket set screws fastened into the drill's flutes. With a countersink diameter of 3/8 inch, a drill hole diameter of 11/64 inch, and an overall length of 7/8 inch, this tool provides precise and efficient countersinking for your woodworking and metalworking projects. Model Number: C8HTC