| 摘要 |
The present disclosure provides an improved bottle opener incorporated on a key having a head and a body. The head has a U-shaped cutout at a downward angle in the range of about 30 DEG to about 60 DEG with fulcrum and lifting edges. The cutout has a width of about -5% to about +8% that of the thickness of a bottle cap. The fulcrum edge has a radius at the cutout opening that engages the top of a bottle cap without puncturing it. The lifting edge passes beneath the rim of the bottle cap, and the body is long enough to provide leverage sufficient to remove the bottle cap.
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