Michigan Drill 5 piece pilotless countersink and debarring single tool set contains 1 piece each of #0, 1, 2, 3 and 4. 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. Set supplied in wood block. 82 degrees point angle. Made in USA.