The Formax Punch100A 3:1 Pitch Square Hole Punching Die is a heavy-duty interchangeable die designed to create precise 4 × 4 mm square holes for 3:1 double-loop wire binding. It delivers consistent punching results for professional documents, booklets, calendars, and presentations. Designed for compatibility with the Formax Punch100A punching system, it can be changed easily without tools for efficient and versatile binding operations.
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