| 摘要 |
PROBLEM TO BE SOLVED: To simplify the use of a fret saw, to facilitate the attachment/ detachment of a blade, and to improve work efficiency by attaching a clamp to the fret saw. SOLUTION: An opening/closing fixture 2 is attached to the end of the arm 1 of a main body, a blade 4 is fitted to one end of the fixture 2, and the blade 4 is attached/detached only by making a movable part rise/tumble. In order to increase only the width of the upper part of the arm part 1 for attaching the fixture 2, metal is added to make an attached tool. As a result, a screw is made unnecessary, and when the blade of a fret saw is attached/detached, it is ready for use.
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