Hole openers
Hole opener 12″ (304.8 mm)
Hole opener 12″ (304.8 mm)
Specifications
- Hole size
- 12″ / 304.8 mm
- Part number
- —
- Cutters
- 7⅞″ – 637 × 4
- Weight
- 178 kg
- Weight on bit
- 48,000–84,000 lb (22–38 t)
- Lead-in / stabiliser / tail (mm)
- 315 / 280 / 250
| Hole size | Part number | Cutters | Weight | Weight on bit | Lead-in / stabiliser / tail (mm) | Quote |
|---|---|---|---|---|---|---|
| 12″ / 304.8 mm | — | 7⅞″ – 637 × 4 | 178 kg | 48,000–84,000 lb (22–38 t) | 315 / 280 / 250 |