To provide a wook tool: enabling attachment and detachment of a cutting insert of a self clamp cutting tool using the one work tool; and having a simple structure.
A work tool includes first and second lever members 1, 2. An engagement shaft 11 protruding perpendicular to a longitudinal direction of the work tool is provided at an intermediate position in the longitudinal direction, of the first lever member 1. At an intermediate position in the longitudinal direction, of the second lever member 2, engagement recesses 21a, 21b that are engageable/disengageable to/from the engagement shaft 11 and rotatably engages to the second lever member 2 around the engagement shaft 11, are formed at both sides of the second lever member 2 when viewed from the protruding direction of the engagement shaft 11. At one side ends of the first and second lever members 1, 2, locking protrusions 12, 22 parallel to the protruding direction of the engagement shaft 11 and protruding to the same side with each other are provided, respectively. At least one of the first and second lever members 1, 2 is curved when viewed from the protruding direction of the engagement shaft 11.
Tadashi Takahashi
Hiroshi Masui
Fumihiro Hosokawa