| 摘要 |
A punch includes a base with a base plate mounted thereto and a plurality of punch units are fixedly connected to the base plate by bolts. A plurality of connection holes and connection grooves are defined in the base plate, wherein the connection grooves communicate with the connection holes, and the connection holes and the connection grooves are arranged in a row. Each punch unit has a bottom plate and two positioning blocks extend from the bottom plate. The positioning blocks can be slid along the connection grooves so that the punch units can be easily shifted along the connection grooves to adjust the distances between the punch units.
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