- Locks right into the GBC Magnapunch Pro Interchangeable Die Punch for a perfect punch every time
- Punches clean, professional holes in paper and plastic covers with a square 3:1 wire binding punch pattern
- Designed with a durable metal construction for lasting reliability
- Punches up to 29 sheets at a time with a 14 maximum document width
- Required for spines up to 9/16"