| 摘要 |
A round knife including a handle which is provided in a head end thereof with a slot for receiving pivotally a round knife blade and a support frame. The slot is provided with a protective groove for retaining and locating the support frame. When the support frame is securely engaged with the protective groove, the round knife blade is concealed securely by a protective shield of the support frame. The support frame can be actuated by an actuation piece to rotate so as to expose the round knife blade to execute the cutting operation.
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