| 摘要 |
A hand tool has an elongated blade having a longitudinally inwardly projecting tang having a longitudinal back edge formed with a plurality of transversely directed teeth, a longitudinal front edge, and an elastically transversely deflectable retaining formation. A handle forms a longitudinally open seat having one longitudinally extending side wall. A retaining lever has an edge formed with teeth and an elastically transversely deflectable retaining formation. The lever is displaceable between a closed holding position with the lever teeth meshing with the blade teeth and pressing the blade against the seat wall and the formation transversely engaging and bearing elastically against the blade retaining formation, and an open freeing position with the lever teeth out of mesh with the blade teeth and the formation out of engagement with the blade retaining formation.
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