| 摘要 |
PROBLEM TO BE SOLVED: To provide an effective technique advantageous in handling a working tool, the technique contributing to a reduction in burden on the hand and fingers of the operator at the time of carrying out work by gripping a handgrip of the working tool. SOLUTION: According to the structure of an impact driver 100 as the working tool, a normal in a rear end face in a grip distal end 130b region out of regions of the handgrip 130, intersects an axial line of a driver bit 110 in front of the grip. COPYRIGHT: (C)2006,JPO&NCIPI
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