| 摘要 |
A punching device includes: a base unit including a supporting part having two opposite pivot seats and a die part; a punch unit including a punch that is disposed directly above the die part and between the pivot seats, the punch being slidable against the die part along a vertical axis; and a pressing unit including two driving levers, each of which has a driving protrusion. The driving protrusions of the driving levers are disposed located respectively to two sides of the vertical axis in asymmetrical manner with respect to the vertical axis and are rotatable relative to the base unit to press against the punch unit.
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