| 摘要 |
PROBLEM TO BE SOLVED: To make a side grip mountable at an arbitrary angle in a housing even when the housing has no cylindrical shape. SOLUTION: Attachments 17, 17 are interposed between a main unit part 4 of a screw driver 1 and a mounting part 10 of a side grip 9. These attachments 17, 17 have an inner surface shape along outer surface shape of half-split housings 2, 3 respectively, the outer surface shape is formed into a cylindrical shape in a diameter larger than the main unit part 4 in a condition assembled therein. Accordingly, in the case of assembling the side grip 9, after the attachments 17, 17 are assembled from the right/left into the main unit part 4, when the mounting part 10 of the side grip 9 is tightened to be externally fitted to an external periphery of the attachments 17, 17, the side grip 9 can be mounted in the main unit 4 through the attachments 17, 17.
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