| 摘要 |
A power hand tool includes a rotary adjustment knob for adjusting maximum output torque, which has a plurality of radial ribs, radial locating grooves alternatively arranged on the inner sidewall thereof, and a locating member for supporting the rotary adjustment knob in position, which has a mounting base coupled to a part inside the housing of the power hand tool and two locating portions located at two opposite sides of the mounting base. Each of the locating portions has a protrusion engaged with one of the radial locating grooves of the rotary adjustment knob.
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