| 摘要 |
An adapter for an electric/pneumatic impact rotary tool includes a first body and a second body. The first and second bodies are cylindrical and coaxial with each other. The first body has a square coupling hole for coupling a cuboid output end of the impact rotary tool. The second body has a screw hole and an external thread, which is located on an outer periphery of the second body and is converse in direction to a thread of the screw hole, for coupling a tool.
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