| 摘要 |
A knife includes a body, a retractable blade slider, a blade snapper, and a manually engageable lock. The retractable blade slider is constructed and arranged to position a multi-blade blade assembly at a position of use wherein at least a forward most blade projects through an opening at one end of the body, and to retract the blade assembly into the body. The blade snapper is removably locked to the body. The blade snapper is constructed and arranged snap-off at least one or more blades from the blade assembly. The manually engageable lock is constructed and arranged to move between a lock position and an unlock position, wherein the movement of the manually engageable lock to the unlock position releases the blade snapper from the body.
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