The Master MP3 Hole Punch by Martin Yale can punch through 20 sheets of 20lb paper with ease. Has an oversized handle for easy open-handed punching with a pre-set to punch 9/32" diameter holes to fit a standard 3-ring binder. Handle locks down for storage and safety. This Master MP3 Hole Punch has an adjustable ruled paper guide, nn-skid feet to keep it in place while punching, large capacity paper chip pan and made with heavy-gauge steel construction.
| Model Number | Model | Hole Diameter (inch) | Number of Holes | Capacity (sheets) | Battery Operated | Electrical (volt) |
|---|---|---|---|---|---|---|
| MP3 |  |
9/32" | 3 | 20 | No | Manual |
| EP312 |  |
9/32" | 3 | 10 | Optional | 115 |
| EP323 |  |
9/32" | 2 or 3 | 12 | Optional | 115 |
| DP20 |  |
9/32" | 2 or 3 | 20 | No | Manual |
| MP40 |  |
9/32" | 3 | 30 | No | Manual |
| MP50 |  |
9/32" | 3 | 40 | No | Manual |
| 3020B |  |
9/32" | 2 or 3 | 30 | No | Manual |
| 325B |  |
9/32" | 2 to 7 | 24 | No | Manual |
| 5325B |  |
9/32" | 2 to 7 | 32 | No | Manual |
| 5335B |  |
11/32" | 2 to 7 | 32 | No | Manual |
| 5340B |  |
13/32" | 2 to 7 | 32 | No | Manual |
| 525M |  |
11/32" | 2 to 7 | 40 | No | Manual |
| 1325B |  |
9/32" | 2 to 7 | 40 | No | Manual |
| 1340PB |  |
12/32" | 2 to 7 | 40 | No | Manual |
| MP80 |  |
9/32" | 3 | 80 | No | Manual |
| EP210 |  |
1/4" | 2 | 12 | Optional | Manual |
| MP250 |  |
9/32" | 2 | 40 | No | Manual |
| 3275B |  |
9/32" | 2 | 40 | No | Manual |
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