(1) from the structure can be divided into
① overall type
② mosaic can be divided into welding and machine clip type. Machine clip type according to the different structure of the knife, divided into indexable and non-transposition;
③ vibration type When the tool arm length and diameter of the relatively large, in order to reduce the vibration of the tool to improve the processing accuracy, the use of such tools;
④ internal cooling type cutting fluid through the inside of the cutter body from the nozzle to the cutting edge of the tool;
⑤ special types such as composite knives, reversible tapping screw and so on.