W. L. Fuller 3/16 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 offers reliable performance in various applications. It is compatible with taper point, brad point, and regular point drills, held securely in place by two hex socket set screws fastened into the drills flutes. With a countersink diameter of 3/8 inch, a drill hole diameter of 3/16 inch, and an overall length of 7/8 inch, this tool is a versatile and essential addition to your workshop. Model Number: C9HTC