| code name | Borehole diameter | Maximum depth | power | Drive shaft/drill bit speed |
| DMB20 | 200mm | 1000mm | 15-20HP | 540/180rpm |
| DMB30 | 300mm | 1000mm | 15-25HP | 540/180rpm |
| DMB40 | 400mm | 900mm | 20-40HP | 540/180rpm |
| DMB50 | 500mm | 800mm | 40-50HP | 540/180rpm |
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