Michigan Drill pilotless countersink and debarring single tool with single end. The action of a single cutting edge provides faster stock removal and prevents chatter. These tools are recommended for debarring steel and other ferrous materials. They can easily be resharpened by using an axial relieving fixture or by using a small mounted grinding wheel and inserting it in the hole. High-speed steel tools is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Available in ground finish. This tool can cut in the range of 5/16-inches to 25/32-inches diameter. 90 degrees point angle. Made in USA.