| 摘要 |
PURPOSE: A cutting tool capable of exchanging a cutting head is provided to connect the cutting head and a shank to position a cutting blade on a specific position by surface-contacting the cutting head and the shank on a perpendicular surface to a screw thread and a spiral surface which is reverse direction thereof. CONSTITUTION: A cutting tool capable of exchanging a cutting head comprises a cutting head(100) and a shank(200). The cutting head includes a cutting head main body and a first screw coupling unit. The shank includes a cylinder unit and a second screw coupling unit. The spiral surface matching with the first spiral surface of the cutting head and the reverse spiral surface matching with the second spiral surface are alternately formed on the outer circumference of one cylinder end unit facing the cutting head main body. After the cutting head and the shank are coupled, the spiral surface of the first spiral surface and the second spiral surface contact with the reverse spiral surface. |
