XY-42A is a kind of core drill driven with tungalloy-carbide-tipped bit and diamond-bit, small-diameter. It is mainly suitable for exploration of metal or non-metal solid mineral ore bed. It is widely applied in the field of geology, metallurgy, coal mine, hydrological and engineering drilling. It can also be used in the fields of superficial-zone petroleum and natural gas mining, mine workings ventilation and water discharge tunnel drilling as well as foundation pile construction in large diameter.
| Drill rod type |
Drill rod size |
Drilling depth |
| The rod made in China |
Inside upset drill rod |
42 mm (1.65 inch) |
1100 m (3608 feet) |
| 50 mm (1.97 inch) |
820 m (2690 feet) |
| 60 mm (2.36 inch) |
610 m (2001 feet) |
| Wire-line drill rod |
53 mm (2.09 inch) |
950 m (3116 feet) |
| 71 mm (2.80 inch) |
700 m (2296 feet) |
| 89 mm (3.50 inch) |
550 m (1804 feet) |
| DCDMA rod |
Inside upset drill rod |
AW |
1100 m (3608 feet) |
| BW |
820 m (2690 feet) |
| NW |
650 m (2132 feet) |
| HW |
430 m (1410 feet) |
| Wire-line drill rod |
AQ |
1200 m (3936 feet) |
| BQ |
950 m (3116 feet) |
| NQ |
730 m (2394 feet) |
| HQ |
500 m (1640 feet) |
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