| 摘要 |
PROBLEM TO BE SOLVED: To achieve easy exchange of a tip tool which is installed onto a rotary electric power tool.SOLUTION: An exchange jig 22 has a salient 23 having a predetermined shape which can be fitted to a fitting hole having a predetermined shape which is formed in a screw structure for installing a tip tool, and a base part 25 which is integrally provided with the salient 23 and is located in a working space. Even if a user of the exchange jig holds and rotates a rotary electric power tool 1 by fitting the salient 23 into the fitting hole, the base part 25 has a weight or friction against the working space thereof such that the rotary electric power tool 1 is not moved. The user fits the salient 23 of the base part 25 into the fitting hole in the rotary electric power tool 1 which removes the tip tool 3 or said rotary electric power tool 1 of which temporary assembly is performed for installation of the tip tool 3. Then, the user holds the rotary electric power tool 1 and rotates the tool 1 with respect to the base part 25 located in the working space. |
