Multiple edged screw tap drill

摘要: The utility model relates to a cutter for processing screw threads of pylome, in particular multi-edge tap drill with the same axis, circle center, edge and flute which consists multi-flute tap. is characterized by consisting an aiguille (1), (2), intermediate zone (3), (4), (5) petiole (6). (3) connecting section positioned between (1) (4) section; (2) arranged on (1); (4). has advantages simple structure, low cost, time saving, labor saving material saving.