| 摘要 |
An adapter for connecting between an output head of an impact rotary tool and a tool bit includes a body, which has a first end wall, a second end wall opposite to the first end wall, a square hole axially extending from the first end wall toward the second end wall for coupling to the output head of the impact rotary tool, and a hexagonal hole axially extending from the second end wall toward the first end wall in alignment with the square hole for holding the tool bit, and a magnet mounted inside the body adjacent to the hexagonal hole for securing the tool bit in the hexagonal hole by magnetic attraction.
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