CNBTR 10mm YT15 Alloy Carbide-Tipped Insert Lathe Turning Tool Cutting Tools Bit Set Pack of 9 It is made of high speed steel material, have very good toughness and high hardness Applicable to the general lathe, semi-automatic and automatic lathe, planer, cylindrical, end face, inner hole, thread, plane, steps, groove and cut off the process of processing Cutting geometry parameters can be on-demand grinding Designed for solidly construction and long performence